在(),2,,,,,中,正数的个数为( )A. 1个 B. 2个 C. 3个 D. 4个 答案:【答案】B【解析】根据幂的运算,绝对值的定义来化解图中式子,根据正数的定义得到答案.(-3)=-3,故不是正数,2,是正数,-(-3)2=-9,故不是正数,-32=-9,故不是正数,-|-3|=-3,故不是正数,|-3|=3,是正数,a2,若a=0,则不是正数,故答案选B.
He started early so that he ________ there in time.
[ ]
A.
could get
B.
got
C.
had got
D.
would have got