正确答案: BCD
可能是2000 Pa 可能是4000 Pa 可能是6000 Pa
题目:一个底面积是0.01m2重是20N,质地均匀的实心正方体,其静止在一个面积是1 m2的正方形水平桌面上,那么该物体对桌面的压强 ( )
解析:BCD
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举一反三的答案和解析:
[单选题]In this lecture, I can only give you a purely __________ view of how we can live life to the full and make some suggestions about the future.
personal
解析:
[单选题]4. There _________a mouse in our house. Look,our food is destroyed.
must be
解析:4.D【解析】There be结构是固定的,一般不可改变其固有形式。
[单选题]6. His name is James, but he calls ________Jim.
himself
解析:6.B 【解析】call oneself自称.
[单选题]一月份我国气温最低的地方是:
漠河
[单选题]12.
are both
解析:12.C【解析】“两者都……”用 both。
[单选题]下列句子中加点成语运用有误的一项是( )(2分)
音乐会上,中国爱乐乐团惟妙惟肖地演奏了二十多首中外名曲。
[单选题]AJune Calendar for After-school Activities in St. Peter High School
[单选题]Which of the following is NOT mentioned(提到)in this passage?
The reason why humans use too much light.