安全帽使用前,应检查帽壳、帽衬、()、顶衬、()等附件完好无损。
参考答案:帽箍;下颏带
The foreigner does speak Chinese well, but of course not _____ we Chinese.
A.as fluent as
B.more fluent than
C.so fluently as
D.much fluently than
进入增强安全模式是在进入维修模式后按()
A.停止-开始
B.停止-0-开始
C.停止-0-清除
D.停止-9-清除