由于磁电式电流表的表头内阻一般都很小,一旦误接成并联,将会烧坏表头。( )
参考答案:对
蟾皮病是由于缺乏()。
A.维生素A
B.维生素B
C.维生素C
D.维生素D
E.维生素E
高兴”的英文译法是“()”
A、I hope you playing pleasant here.
B、I hope you’ll have a good time here.
C、I hope you’ll enjoy here.
D、I hope you’ll spend a happy time here.