According to the text, a bad fall of the author resulted in______.
A. the smash of delicate nerve endings
B. the loss of something
C. the change of personality and memory
D. the sense of smell
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______his return from Japan, Professor Li went directly to his laboratory and started working with his colleagues.
A. Upon
B. At
C. Within
D. Over
The word "walloped" (Line 3, Paragraph 1) most probably means "______".
A. decreased
B. affected
C. increased
D. hit
在国家出现紧急状态或者非常情况时,或者为了公共利益的目的,国务院专利行政部门可以给予实施发明专利或者实用新型专利的强制许可。()
______plastics, the machine is light in weight.
A. Made of
B. Having made with
C. To make of
D. To be made of