传染性肝炎是由（）引起的一种急性败血性传染病A、CAV～1 B、CA_爱下问搜题

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问题单项选择题

传染性肝炎是由（）引起的一种急性败血性传染病

A、CAV～1

B、CAV～2

C、CAV～3

D、CPIV

答案

参考答案：A

单项选择题

Questions 14-23

·Look at the ten statements for this part.
·You will hear a short interview with George Jones, executive director for Bread for the City a private nonprofit organization.
·Decide whetheryou think each statement is right(R), wrong(W) or not mentioned(NM).
·Mark your answers on the Answer Sheet.

The or organization raises $50,000,000 a year from charitable sources.

A．Right

B．Wrong

C．Not Mentioned

问答题简答题

计算题：一压力容器内压强为20kPa，问该容器上的一个承压面积为4m²的人孔盖受到压力是多少？