[单项选择]New vehicles must ______ with certain standards for environmental protection.
A. apply
B. comply
C. imply
D. supply

[单项选择]Certain species disappeared or became （） as new forms arose that were better adapted to the Earth's changing environment.
A. feeble
B. extinct
C. massive
D. extinguished

[填空题]There are some important safety rules that must follow in case of an emergency or a sudden illness（）.

[单项选择]Automobiles must have certain safety devices such as seat belts and good brakes.
A. 汽车应有一定的安全性, 要有安全带和好的刹车。
B. 汽车有了安全带和好的刹车就是安全的。
C. 汽车应有安全装置, 比如安全带和好的刹车。
D. 汽车必须有安全带和好的刹车这两个安全装置。

[单项选择]

Normally a student must attend a certain number of courses in order to graduate’ and each course which he attends gives him a credit(学分) which he may count towards a degree. In many American universities the total work for a degree consists of thirty-six courses, each lasting for one semester(学期). A typical course consists of three classes per week for fifteen weeks; while attending a university a student will probably attend four or five courses during each semester. Normally a student would expect to take four years at ten ding two semesters each year. It is possible to spread to period of work for the degree over a longer period. It is also possible for a student to move between one university and another during his degree courses, though this is not in fact done as a regular practice.
For every course that he follows a student is given a grade, which is recorded, and the record is available for the student to show to prospective employers. All this imposes a con
A. 36
B. 12
C. 20
D. 15

[单项选择]

Passage 2 Normally a student must attend a certain number of courses in order to graduate, and each course which he attends gives a credit which may matter toward a degree. In many American universities the total work for a degree consists of thirty - six courses each lasting for one semester. A typical course consists of three classes per week for fifteen weeks；while attending a university a student will probably attend four or five courses during each semester. Normally a student would expect to take four years attending two semesters each year. It is possible to spread the period of work for the degree over a longer period. It is also possible for a student to move between one university and another during his degree course, though this is not in fact done as a regular practice. For every course followed a student is given a grade, which is recorded, and the record is available for the student to show to prospective employers. All this imposes a constant pressure affair
A. to live in a different university
B. to take a particular course in a different university
C. to live at home and drive to classes
D. to get two degrees from two different universities