A．aboutB．roundC．mouthD．could
A. about
B. round
C. mouth
D. could
查看答案
When he was near the town. ______ and stopped it.
A. a worker caught up with the train
B. the railway officials caught up with the train
C. the boy's uncle caught up with the train
An old lady asked them the way to the Hot Spring Hotel.
A. True.
B. False.
A．提议B．建议C．提出D．意见
A. 提议
B. 建议
C. 提出
D. 意见
如该患者与血友病A携带者结婚，他们下一代子女的患病率为
A. 0.5
B. 0.25
C. 1
D. 0.75
E. 0.15
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