问题
单项选择题
如图5-58所示,悬臂梁的变形能为U,则表示()。
A.A点的挠度
B.A点的转角
C.C点的挠度
D.C点的转角
答案
参考答案:A
解析:
表示F力处的挠度。
如图5-58所示,悬臂梁的变形能为U,则表示()。
A.A点的挠度
B.A点的转角
C.C点的挠度
D.C点的转角
参考答案:A
解析:
表示F力处的挠度。
根据对话内容,从对话后的选项中选出能填入空白处的最佳选项,并在答题卡上将该项涂黑。选项中有两项多余选项。 Doctor: Can I help you? Patient: Yes, 1 Doctor: What’s the matter with it? Patient: Oh, it’s terrible! I was burnt in a fire caused by smoking. Doctor: 2 Patient: Oh, nothing. I didn’t know what to do. Doctor: OK, Put it higher. Let me examine it and put some medicine on it. Patient: Ah, I feel a great pain here. Would you mind me lying down? Doctor: Of course not. 3 Patient: But I feel so bad. Doctor: Just stay in bed until next Friday. Don’t move a bit. Patient: 4 Doctor: No, you can’t do that. Take this medicine three times a day. Patient: Oh, it’s terrible! Terrible! I hate it! Doctor: Calm down please! 5
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