断电器触点间隙增大,则点火提前角就()
A.减小
B.增大
C.保持不变
D.以上说法都不完整
参考答案:B
工业用地的土壤耐压强度一般不应小于()t/m2。
A.9
B.15
C.16
D.32
Here is __________ iPad my uncle sent me yesterday. I believe it’s __________ fantastic one!
A.an; a
B.the; a
C.the; the
D.an; the