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【单选题】
—Mr. Xu, can you tell us how to learn English well? —Sure. But remember nothing can be learned hard work.A.
by
B.
with
C.
without
D.
for
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皮皮学刷刷变学霸
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【判断题】建立和完善社会主义市场经济体制，必须坚持和完善公有制为主体、多种所有制经济共同发展，这就意味着个体、私营等各种形式的非公有制经济是社会主义市场经济的有益补充。
A.
正确
B.
错误
【简答题】什么时供油提前角和喷油提前角?解释两者的关系以及他们对柴油机性能的影响。
【单选题】听力原文：There are primarily three principal parties involved: the trustor, the beneficiary and the trustee. (8)
A.
The trustor, the beneficiary and the settlor are primarily three principal parties.
B.
The trustor, the beneficiary and the trustee are primarily three principal parties.
C.
The trustor, the beneficiary and the grantor are primarily three principal parties.
D.
The trustor, the beneficiary and the donor are primarily three principal parties.
【简答题】什么时供油提前角和喷油提前角？解释两者的关系以及对柴油机性能的影响。
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