本科毕业生授予学士学位要满足的英语成绩条件以下正确的是（）。

Owners are to be responsible for loss of or damage to the goods or delay in delivery of the goods only in case the loss，damage or delay has been caused by the improper or negligent stowage of the goods．This means that（）.

In our class, when the bell rang and the teacher closed his book, it was a

The students in a certain physical education class are on either the basketball team or the tennis team, are on both these teams, or are not on either team. If 15 students are on the basketball team, 18 students are on the tennis team, 11 students are on both teams, and 14 students are not on either of these teams, how many students are in the class?

The students in a certain physical education class are on either the football team or the basketball team, are on both these teams, or are not on either team. If 12 students are on the football team, 15 students are on the basketball team, 8 students are on both teams, and 9 students are not on either of these teams, how many students are in the class?

During class, the teacher leads students to memorize the important points of the teaching content. On one hand, the teacher helps students to grasp the key points. On the other hand, what learning strategy is the teacher teaching?

The teacher asks students to do a group-work task . Before the task, the teacher assigns roles clearly around the class, pointing to each student in turn . You are A  . . . you are B  . . ., etc .Here the teacher plays the role of ______ .

In the geography class, the teacher explained wind and water might cause soil（）

The （） is used for hauling in or letting out the wires or ropes.

The（）may examine or re-examine the goods or take samples from them straightaway in the absence of the consignee or the consignor whenever it considers this necessary.

If the teacher were talking too much in class the students would not be learning.（）

In a class of 160 seniors, the ratio of boys to girls is 3 to 5. In the junior class, the ratio of boys to girls is 3 to 2. When the two classes are combined, the ratio of boys to girls is 1 to 1. How many students are in the junior class?