内含报酬率就是在净现值不等于零时的折现率,它反映了股票投资的内在收益情况。()
参考答案:错
It is playing computer games _______ the boy spends most of his spare time.
A.that
B.which
C.when
D.how
用TEXT命令书写“正/负”符号时应使用()。
A.%%d
B.%%p
C.%%c
D.%%u