电除尘器停运后,开启人孔门时应()。
参考答案:放电一次
4.9×0.96的积有______位小数;675.86÷0.65,商的最高位在______位上.
He came _________ finding the girl.
A.in the hope of
B.in hope of
C.in the hope that
D.in hope that