手提式与直立式高压蒸汽灭菌器，压力升至一定程度后需开放排气管排出冷空气，此压力是
A. 0.15kg/cm2
B. 0.20kg/cm2
C. 0.35kg/cm2
D. 0.50kg/cm2
E. 0.45kg/cm2
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It was Friday afternoon and the shops were full ______ customers.
A. of
B. in
C. by
D. with
People in London are ______ friendlier than they used to be.
A. bit
B. easily
C. quite
D. much
The main idea of the passage is that ________.
A. a narrow view of Emma is natural and acceptable
B. a novel should not depict a vanished society
C. a good novel is an intellectual rather than an emotional experience
D. Emma should be read with sensitivity and an open mind
They have been raising horses and cows on their farms ______ many years.
A. after
B. for
C. since
D. by
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