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【单选题】
下列关于计算机病毒的叙述中，错误的一条是______。
A.
计算机病毒会造成对计算机文件和数据的破坏
B.
只要删除感染了病毒的文件就可以彻底消除此病毒
C.
计算机病毒是一段人为制造的小程序
D.
计算机病毒是可以预防和消除的
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参考答案：
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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...
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【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.
查看完整题目与答案
【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
查看完整题目与答案
【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
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【判断题】Tom thinks staying at home is healthy.
A.
正确
B.
错误
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【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.
/; /
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【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 ually 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
查看完整题目与答案
【单选题】渗碳体是一种( )。
A.
固溶体
B.
复杂结构的间隙化合物
C.
间隙相
D.
机械混合物
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【单选题】渗碳体是一种（ ）。
A.
固溶体
B.
金属化合物
C.
机械混合物
D.
非金属化合物
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【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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相关题目：
【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...
查看完整题目与答案
【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.
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【判断题】Tom thinks staying at home is healthy.
A.
正确
B.
错误
查看完整题目与答案
【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.
/; /
查看完整题目与答案
【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 ually 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
查看完整题目与答案
【单选题】渗碳体是一种( )。
A.
固溶体
B.
复杂结构的间隙化合物
C.
间隙相
D.
机械混合物
查看完整题目与答案
【单选题】渗碳体是一种（ ）。
A.
固溶体
B.
金属化合物
C.
机械混合物
D.
非金属化合物
查看完整题目与答案
【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...
查看完整题目与答案
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