液压支架的初撑力应达到额定值的()以上。
A、60%
B、80%
C、90%
参考答案:B
说画拉理
这幅图画说明了人大制度的什么特点,人大制度比喻成“聪”字的四个方面。
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完成句子。
1. Tourists are becoming ______ (越来越感兴趣) in going climbing and boating.
2. ______ (在我看来), it was an honour to help you.
3. It's ______ (有用) you ______ (带上)the map when you travel.
4. People travel to ______ (参观名胜古迹), and (了解) different cultures and customs.
5. Riding a camel ______ (穿越沙漠是有趣的经历).