下列哪项不属于双眼视觉检查方法()
A.障碍阅读法
B.同视机法
C.红玻片法
D.Worth四点试验
E.集合运动检查
参考答案:E
油基钻井液的抗盐、钙侵能力()。
A、一般
B、特强
C、特弱
D、没有
The book provides tips for Westerners who work in Japanese firms: get together outside the office, find a mentor for support and refrain for practicing Japanese with colleagues on the job.
A.of
B.to
C.off
D.from