抽油机井实测示功图为抽喷,首先应采取()的办法处理。A、换大泵 B、换小泵 C、上调冲次 发布时间:2018-03-04 10:14 │ 来源:www.tikuol.com 题型:单项选择题 问题: 抽油机井实测示功图为抽喷,首先应采取()的办法处理。A、换大泵B、换小泵C、上调冲次D、下调冲程
题型:单项选择题 第三节:写作(满分30)根据下面四幅图画,写一篇100词左右的短文,开头已给出。提示: ride very fast after a bus 在汽车后面骑得飞快 talk and laugh 又说又笑 all the way 一路上 the traffic light turn red 交通灯变红了 run into 撞上 stop a taxi 叫住一辆出租车send…to…把…送到treatment 治疗 It’s dangerous to…是很危险的。Ma Hu was carrying Li Gang on the back of his bike. _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 查看答案
题型:单项选择题 English language publications in China are growing in volume and ______.A.circulationB.rotationC.circumstanceD.appreciation 查看答案