【简答题】图示所示的焊接缺陷为(),其主要原因为焊料在焊接过程中发生了()。
【单选题】Which of the following activities can be used at the practice stage of teaching vocabulary?
A.
Filling the blanks of a text by using the new vocabulary.
B.
Explaining the use of the new vocabulary.
C.
Finding out the meaning of the new vocabulary according to the context.
D.
Finding out the part of speech of the new vocabulary.
【判断题】只有当应收账款所增加的盈利超过所增加的成本时,才应该放宽信用条件。
【判断题】字符“A”的ASCII码值为65,则“C”的ASCII码值为67。()
【判断题】应收账款管理的目的是在应收账款信用政策所增加的销售盈利和这种政策成本之间作出权衡,只有当应收账款所增加的成本超过所增加的销售盈利时,才宜实施赊销政策。( )
【单选题】急性化脓性腹膜炎的手术指征中,不正确的是()