【单选题】维生素D缺乏性佝偻病激期,最主要的表现为( )
【单选题】技师甲说“充电电路的电压降测试只能在电流通过电路的时候进行测试”。技师乙说“测量 充电系统的电压降应将电压表的正负表笔分别与蓄电池的正负接线柱相连接”。说法正 确的技师是?
【单选题】Woman: You came home just to lie on the couch and fix your eyes on the box. Man: Yon said it. For years it's been everyone's little dirty secret about TV watching. But I'll 'come out of the closet' , ...
A.
Watching TV does harm to people's health.
B.
Everyone likes watching TV and likes to confess to it.
C.
People claim openly that they like watching TV.
D.
The man claims openly that he likes watching TV.
【简答题】如果六级过了,四级不过,拿到六级证书,是否可以算做六级,跟四级是否过无关?