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【多选题】
药物合成和汇聚过程中的催化技术有A.
酶催化
B.
酸碱催化
C.
自主催化
D.
相转移催化
E.
金属催化
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皮皮学刷刷变学霸
举一反三
【单选题】In terms of the salutation, which of the following statements is CORRECT?
A.
The salutation is the complimentary close with which every letter ends.
B.
In all English-speaking countries, if you don't know the name of the recepient, you can address them as Dear Sir or Gentlemen.
C.
If the receiver is known to the writer personally, a less formal and warmer greeting is used, such as "Dear Mr.White" or "Dear Ms. Bontous".
D.
Salutation can only be followed by a comma.
【单选题】In terms of the salutation, which of the following statements is CORRECT? ______
A.
The salutation is the complimentary close with which every letter ends .
B.
In all English-speaking countries, if you don’t know the name of the recipient, you can address them as Dear Sir or Gentlemen.
C.
If the receiver is known to the writer personally, a less formal and warmer greeting is used, such as “Dear Mr. White” or “Dear Ms. Bontous”.
D.
Salutation can only be followed by a comma.
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