目前国内天井掘进多采用普通掘进法、（）、深孔爆破法、牙轮钻机钻进法、爬罐掘进法。
参考答案：吊罐掘进法
Never judge a man by his _____ alone — you might be fooled by what he looks like.
A．appearance
B．character
C．intelligence
D．application
妊娠腹痛的主要证型有（）
A.气滞
B.血瘀
C.阴虚
D.血虚
E.虚寒
