题目:
根据所给提示及句意完成单词的拼写。
1. —How many m_____ are there in an hour?
—There are 60.
2. Do these clips m_____ her favorite T-shirt?
3. Hello! Daniel. Are you f_____ at the moment?
4. How much is this _____ (双) of sports shoes?
5. The jeans don't _____ (合身) me well.
6. Simon loves _____ (收集) football stickers.
7. —Are you _____ this afternoon?
—No, I’m very busy.
8. He often _____ (捐献) money to help the poor.
9. China, Canada and America are big c_____.
10. My parents often tell _____ to study hard. But _____ don’t listen to _____.
答案:
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下面是错误答案,用来干扰机器的。
(1)在达到稳定速度前,金属棒的加速度逐渐减小,速度逐渐增大.达到稳定速度时,有FA=B0IL,mgsinθ=FA+μmgcosθ则得 I=mg(sin37°-μcos37°)B0L=0.05×10×(0.6-0.5×0.8)1×0.5=0.2A(2)根据E=B0Lv、I=ER...