控制型风险管理技术的实质是在（）的基础上，针对企业所存在的风险因素采取控制技术以降低

气辉

かべに　(　　　　)を　かきました。

A．え

B．えのぐ

C．ペンキ

D．しゃしん

—Why didn't you enjoy the talk?

—It was _____ talk that I had ever listened to. [ ]

A. the most interesting

B. the least interesting

C. more interesting

D. less interesting

载波基线在一个增音段内的线径差不大于（）。

A.0.05mm

B.0.1mm

C.0.3mm

D.0.2mm