题目

 In many places in China, the old over 90         not only by their family but also by the government.      A. is taking good care      B. are taken good care of      C. is taking good care of    D. are taken good care 答案:B 解析:被动语态的用法。句意“在中国的许多地方,超过90岁的人不仅被家庭好好照顾着,而且也被政府照顾着”。the old指一类人,因此是复数形式,故排除A、C,被动语态中的动作须是及物动词,因此选B。下列说法正确的是A.能量的耗散反映出自然界的宏观过程是有方向性的B.能量守恒表明,节约能源是无意义的C.随着科技的发展,永动机是可以制成的D.能量守恒定律是自然界遵循的普遍规律
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