甲状腺功能亢进引起腹泻多为()
A.分泌性腹泻
B.渗透性腹泻
C.渗出性腹泻
D.动力性腹泻
E.吸收不良性腹泻
参考答案:D
______ those troublesome messages, you’d better not give out your number to anyone whom you don’t know.
A.Avoiding
B.Avoided
C.Having avoided
D.To avoid
镭是第七周期第ⅡA族元素,关于镭的性质不正确的描述是( )
A.在化合物里呈+2价
B.单质与水反应产生氢气
C.氢氧化物呈两性
D.其碳酸盐难溶