下列四个家庭小实验不能制得溶液的是[ ]
A．
B．
C．
D．
答案：B
Let's _____ pears.
A. have
B. has
C. had
D. having
一般纳税人销售货物、提供应税劳务或应征收增值税的非应税劳务时，必须向购买方开具增值税专用发票。()
