One hundred boys went on a school outing. Eighty-one percent of the boys lost a shoe, 82 percent of the boys lost a sock, 77 percent of the boys lost a handkerchief and 68 percent of the boys lost a hat.　　What is the minimum percentage who lost all 4 items?

It is the responsibility of the Master or person in charge of a ship to ensure that（）.

It is the responsibility of the Master or person in charge of a ship to ensure that（）.

The Greek ship drifted and struck the portside of a Chinese ship，which（）the bulwalk and Stanchions.

The Greek ship drifted and struck the portside of a Chinese ship, which（）the bulwalk and stanchions.

Where must the 0mster or person in charge of a ship record the date of each test of emergency lighting and power systems and the condition and performance of the equipment?（）

Where must the master or person in charge of a ship record the date of each test of emergency lighting and power systems and the condition and performance of the equipment（）.

（）is entitled to enter into，with a shipper，any agreement，stipulation，condition，reservation or exception as to the responsibility and liability of the carrier or the ship for the loss of or damage to，or in connection with，the custody and care and handling of the goods prior to the loading on，and subsequent to the discharge from，the ship on which the goods are carried by sea.

By degrees the shutters were opened; the window-blinds were drawn up, and people began passing to and (1)____. Some few stopped to gaze at Oliver for a moment or two, or turned round to (2) st____ at him as they hurried by; but none relieved him, or troubled themselves to inquire how he came there. He had no heart to beg. And there he sat. He had been crouching on the step for some time, (3)____(wonder) at the great number of public-houses (every other house in Barnet was a tavern, large or small); gazing listlessly (4)____ the coaches as they passed through, and thinking how strange it seemed that they could do, with (5) e____, in a few hours, what it had taken him a whole week of courage and (6)____(determine) beyond his years to accomplish; when he was roused by observing that a boy, who had passed him carelessly some minutes before, had returned, and was now surveying him most (7)____(earnest) from the (8) o____ side of the way. He took little heed of this at first; but the boy remained in the same attitude of close observation so long, that Oliver (9)____(raise) his head, and returned his steady look. Upon this, the boy crossed over, and, (10) w____ close up to Oliver, said, “Hello! My covey, what’s the row?”

When all the people had assembled, the king, surrounded by his court, (21) a signal. Then a door beneath him opened, and the accused man stepped (22) into the arena. Directly opposite him were two doors, exactly (23) and side by side. It was the duty and the privilege of the (24) on trial to walk directly to these (25) and open one of them. He (26) open either door he pleased; he was subject to no (27) or influence. If he opened the one, there came out of it a hungry tiger, the (28) and most cruel that could be found, which (29) sprang upon him and tore him to pieces as a punishment for his guilt. (30) , if the accused person opened the other door, out of it came a (31) lady, and to this lady he was immediately married, as a reward of his innocence. This was the (32) method of administering justice. Its perfect fairness is obvious. The criminal could (33) know out of which door would come the lady; he opened either he pleased, without having the slightest (34) whether, in the next instant, he was to be devoured or married. So the accused person was instantly (35) if guilty, and, if innocent, he was rewarded on the spot.21.

（1） analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems．Ultimately, the system models become the（2） for designing and constructing an improved system. （3） is such a technique. The emphasis in this technique is process-centered．Systems analysts draw a series of process models called （4） . （5） is another such technique that integrates data and process concerns into constructs called objects.

When a tug is pulling on a hawser at right angles to the ship，and the pilot wants to come ahead or astern on the ship’s engine，care must be taken that the pilot（）.