About 20 of the passengers who were injured in a plane crash are said to be in_____condition ．
A. decisive
B. urgent
C. vita
D. critical
The manager is calling on a______ customer trying to talk him into signing the contract ．
A. prosperous
B. preliminary
C. pessimistic
D. prospective
白肋烟堆积发酵的最适温度为（）
A. 18 ° C －20° C
B. 20° C － 25° C
C. 25° C －28° C
D. 30 ° C －35° C
汉代创办的宫邸学，也称（）
A. 太学
B. 地方官学
C. “四姓小侯学”
D. 史学
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