(11·贵港)计算4×(-2)的结果是
A.6
B.-6
C.8
D.-8
答案:D
分析:根据有理数乘法法则进行计算,同号得正,异号得负.
解答:解:4×(-2)=-8.
故选D.
Today is Teachers' Day. Let's ____________ hello to our teachers. [ ]
A. speak
B. tell
C. talk
D. say
不能完全辨认自己行为的精神病人是元民事行为能力人。