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【单选题】
下列选项不属于变压器的主要功能的是?
A.
变电压
B.
变电流
C.
变容量
D.
变阻抗
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【判断题】两个以上的专利申请人分别就同意的发明创造在中国申请专利的,专利权授予最先发明人。
A.
正确
B.
错误
【简答题】If they know we are in trouble, they will certainly come to our help. ( 但是如果他们不知道呢 ?)
【单选题】If they _______ to make heart-felt apologies soon we will have to bring an action against them.
A.
disagreed
B.
refused
C.
agreed
D.
hoped
【单选题】——Mary stays alone in the classroom and looks sad. ——________ to her?
A.
What happens
B.
What is happened
C.
What is happening
D.
What was happening
【单选题】If we can work as hard as they do, we will succeed in what we ______ to do.
A.
determine
B.
determined
C.
determination
D.
determining
【单选题】---Mary looks sad. Did you tell her about the accident? ---Yes, but I __________ have told her.
A.
should
B.
shouldn't
C.
must
D.
ought to not
【单选题】---- Mary looks sad. What _________ her ? -----She failed in the maths exam.
A.
happened to 
B.
happened  
C.
was happened   D were happened
【单选题】----- Mary looks sad . Did you tell her about the accident ? --- Yes , but I ______ her later .
A.
should have told
B.
shouldn't have told
C.
must have told
D.
ought not to have told
【单选题】对总分类账格式和登记方法的错误要求是( )
A.
大多数总分类账一般采用借方、贷方、余额三栏式账簿
B.
总分类账一般不采用订本账
C.
总分类账应该按照总分类账户分类登记以提供总括会计信息
D.
总分类账的登记方法因登记的依据不同而有所不同
【多选题】雌二醇修饰为长效或口服药物的方法有( )
A.
将3-羟基酯化
B.
将17β-羟基酯化
C.
引入17α-乙炔基
D.
19-去甲基
E.
将3-羟基醚化
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