数控车床的外圆车刀通过（）安装在转塔刀架的转塔刀盘上。
A、刀柄套
B、定位环
C、刀柄座
D、定位套
参考答案：C
Although she could speak very little Chinese, ______ we did manage to communicate with her. [ ]
A. anyhow
B. anyway
C. somewhere
D. somehow
猪苓汤证“心烦不得眠”的机理是（）
A.肾水不足，心火上亢
B.阴虚热扰，心神不宁
C.余热未清，留扰胸膈
D.阴血不足，心失所养
E.以上都不是
