在下列物理量中,()的单位是相同的。
①内力;
②应力;
③扭矩;
④轴力;
⑤弯矩;
⑥应变;
⑦压强;
⑧剪力;
⑨弹性极限;
⑩延伸率。
Sleepwalking is a disorder
characterized by walking or other activities a person engaged in while
{{U}} (62) {{/U}} still asleep. It is especially {{U}} (63) {{/U}}
among children. Each night there are several {{U}} (64) {{/U}} of non-REM
and REM sleep. Sleepwalking most often occurs during deep, non-REM sleep early
in the night. It can also occur during REM sleep near morning. The cause of sleepwalking in children is usually unknown {{U}} (65) {{/U}} may be related to fatigue,{{U}} (66) {{/U}} sleep loss, or anxiety. Sleepwalking in adults can be associated with mental disorders, reactions to drugs and alcohol, or disease such as seizures: In the elderly, sleepwalking may be a {{U}} (67) {{/U}} of an organic brain syndrome(综合病症) or REM behavior disorders. The sleepwalking activity may include simply sitting {{U}} (68) {{/U}} A. while B. as C. although D. whatever [单选题]【考核点:97006010101002 题型:单选题 难度:易 类型:通用】
当一条直线平行投影面时,它的投影是( )。 A.一个点 B.一条直线 C.缩小平面 D.真实形状 [单选题]车站负责简略实验时,车站实验人员通知司机,司机常用制动减压100kPa并保压( )min。
A.1 B.2 C.3 D.4 [判断题]《东京公约》规定航空器登记国对在该航空器内的犯罪和所犯行为可以行使优先管辖权。
A.正确 B.错误 [单项选择]以质量特性值为对象来设置工序质量控制点,它适用于()生产。
A. 单件 B. 小批量 C. 大批量 [多选题]集团公司各系统单项先进个人奖励()元;集团公司综合性单项先进个人(含主人翁标兵)奖励()元;
A.200 B.500 C.800 D.1000 [判断题]安全带应低挂高用。( )
A.正确 B.错误 我来回答: 提交
|