计算“3×6”和“6×3”所用的口诀是( )。
三六十八
He often looks away from people when talking, and I can hardly stand______like this.
A.his to behave
B.him to behave
C.he behaving
D.his behaving
下列原始凭证中, 既可能是外来原始凭证, 也可能是自制原始凭证的是( )。
A.增值税专用发票
B.收料单
C.商品入库单
D.工资汇总表