听力原文：W: I'm thinking of taking five courses next semester.
M: Wouldn't four be wiser？
Q: What does the man mean？
(3)
A. There are too many courses offered to students.
B. The woman should take fewer courses next term.
C. The man will take four courses next semester.
D. It is wiser to take more than four courses.
The pilot ship proved that the experiment was feasible; however, it did not duplicate the______.
A. depths at which actual mining would take place
B. principle of a huge vacuum cleaner
C. method by which the nodules were produced
D. techniques of refining the ore
A．His painting is a mess.B．His painting does not belong to art.C．He feels terrible whi
A. His painting is a mess.
B. His painting does not belong to art.
C. He feels terrible while painting his picture.
D. George's mother has made the same comment.
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