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【多选题】
沉积岩中常见的假晶前身可能是? ( )
A.
B.
石膏
C.
白云石
D.
石英
E.
角闪石
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参考答案:
举一反三
【判断题】{ 药物和受体的可逆成键方式有离子键,氢键,离子耦极,耦极 - 耦极,范德华力,电荷转移复合物,疏水键等。 }
A.
正确
B.
错误
【多选题】药物与受体形成可逆复合物的键合方式可以有
A.
离子键
B.
氢键
C.
离子偶极
D.
范德华力
E.
共价键
【简答题】The of ping-pong was used as a 1) _______ weapon in diplomacy, leading to the 2) _________ of Sino-US relations. In the late 1960s, the Nixon Administration wanted to change its global 3)________...
【单选题】急性上呼吸道感染最常见的致病菌
A.
细菌
B.
病毒
C.
支原体
D.
衣原体
E.
幽门螺旋杆菌
【简答题】A Food Tour of the United States One of the most intriguing features of American cooking is its variety. The traveler who crosses the U.S. by bus or by car will find the food as worthy of attention as...
【单选题】听力原文: In this century the traditional American family is constantly faced with the threat of breakdown. Some sociologists suggest that one little-noticed cause may be the introduction of the TV dinner...
A.
The problem of poverty.
B.
The problem of having few children.
C.
The problem of poor living conditions.
D.
The problem of divorce.
【简答题】Speaking of American table tanners, here are some tips for you: ( )A. Chew with your mouth closed. B. Say "Excuse me," or "Excuse me, I'll be right back," before leaving the table. C. Burping, coughin...
【简答题】Complete the following dialogue by filling in the blanks according to the Chinese given in the brackets. (Wang Ling is talking about the table tennis with an American student Tom.) Tom:Is table tennis...
【简答题】Keep your personal items off the restaurant table. It’s a poor practice to place all sorts of belongings on a restaurant table. These include items such as your cell phone, car keys or clutch bag, to ...
【简答题】Please read Text B of Unit 2 carefully and portray the sharp contrast in American people with the help of Summary table from Powerpoint.
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