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【单选题】
根据已知视图,在平面ABC内作一水平线MN,使其距水平面25mm。 MN,使其距水平面25mm,解答正确的是( )
A.
B.
C.
D.
D
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【简答题】A healthy amount of sunshine may be the secret to staying young. British scientists have discovered. Vitamin D is produced naturally by the skin in response to(对…的反应) sunlight and may help to slow the...
【单选题】听力原文:Staying healthy today means more than just going to a doctor when you're ill. What does 'staying healthy' mean today?
A.
You should often go to a doctor.
B.
Going to a doctor regularly helps.
C.
Keep fit and strong all the time.
D.
You should never go to a doctor.
【单选题】Most people believe the key to happy and productive retirement years is staying healthy. Yet, its not just about diet and exercise. How you manage your money often determines your level of stress, whi...
A.
nothing but diet and exercise determines health
B.
diet and exercise have nothing to do with health
C.
health after retirement depends on money alone
D.
wealth also plays a role in staying healthy
【单选题】受力情况的应力集中较小的接头是 。
A.
搭接接头
B.
T 形接头
C.
角接接头
D.
对接接头
【简答题】简述系统分析阶段的工作步骤。
【单选题】滴定分析操作中出现下列情况,导致偶然误差的有
A.
试样未经充分搅拌
B.
滴定管未经润洗
C.
天平零点稍有变动
D.
试剂中含有干扰离子
【判断题】Tom thinks staying at home is healthy.
A.
正确
B.
错误
【单选题】People ________do exercise every day have a better chance of staying healthy than those ________don’t.
A.
who; /
B.
/; who
C.
who; who
D.
/; /
【单选题】The author of this passage intends to argue that______.
A.
staying healthy is impossible without accumulating much wealth
B.
being physically healthy can eventually contribute to your wealth
C.
feeling good about your finance is also of health benefit
D.
a large fortune will increase the chance of deterioration of health
【简答题】The keys to reaching or staying at a healthy weight are regular exercise and good eating habits. s should get 60 minutes or more of physical activity a day. Note the word “activity”. As long as yo...
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