问题
单项选择题
测量气体压力时,取压口高度高于测量点时,对读取的测量结果()。
A、应加正修正;
B、不需修正;
C、应加负修正;
D、无法决定。
答案
参考答案:B
测量气体压力时,取压口高度高于测量点时,对读取的测量结果()。
A、应加正修正;
B、不需修正;
C、应加负修正;
D、无法决定。
参考答案:B
阅读短文,根据文章的内容选择最佳答案。 | |||
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1. How many Chinese astronauts have been sent up into the space so far? | |||
A. One. B. Two. C. Three. | |||
2. Who was born in Kunshan, Jiansu Province? | |||
A. Fei Junlong. B. Nie Haisheng. C. Yang Liwei. | |||
3. How many visitors went to Hong Kong Disney Park on the opening day? | |||
A. Thirteen thousand. B. Three hundred thousand. C. Thirty thousand. | |||
4. These two reading pieces are probably from ______. | |||
A. dictionaries B. advertisements C. newspapers |