The strongest method of forming an eye in wire rope is using（）.

An over-speed trip serves to （）

Securing cargo by running timbers from an upper support down to the cargo，either vertically or at an angle，is called（）.

Clouds that form as small white flakes or scaly globular masses covering either small or large portions of the sky are（）.

The type of joint formed when an edge of one plate is laid over the edge of the plate to which it is riveted is a（）.

Clouds that form as small white flakes or scaly globular masses covering either small or large portions of the sky are（）.

An advantage of nylon rope over manila is that nylon rope（）.

Tasmania is an island which lies（）of the Australian mainland.

For each blank，choose the best answer from the four choices and write down on the answer sheet．(66) is a protocol that a host uses to inform. a router when it joins or leaves an Internet multicast group．(67) is an error detection code that most data communication networks use．(68) is an interior gateway protocol that uses a distance vector algorithm to propagate routing information．(69) is a transfer mode in which all types of information are organized into fixed form. cells on an asynchronous or non -periodic basis over a range of media.(70) is an identifier of a web page.

Do you like an apple or a banana?（）

In many areas “atoll” clouds (clouds of vertical development) are produced over small islands. These are the result of（）.

An atoll cloud forming over an island due to heating of the land during the daytime would be which type? （）