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问题 单项选择题

哪种疾病可完全由超声检查发现()

A．肝肿瘤

B．肝脓肿

C．胆管梗阻

D．肝转移

E．肝炎

答案

参考答案：B

填空题

做功和热传递在______上是等效的．一定质量的气体从外界吸收160J的热量，同时对外做功170J，则气体的内能______．
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选择题
Both Jim and I ______ ready for the picnic next week.

A. am going to get
B. are going to get
C. is going to get
D. were getting
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