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问题 单项选择题

在攻丝时，除用头锥、二锥外，必须用（）最后攻削，内螺纹的尺寸才正确。

A、头锥

B、二锥

C、三锥

D、丝锥

答案

参考答案：C

单项选择题 A1型题

药材牡丹皮的主要产地是（）

A.安徽、四川、河南

B.广东、广西、湖南

C.河北、山西、陕西

D.吉林、辽宁、黑龙江

E.广西、云南、贵州
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单项选择题

The nurse is caring for a 40-year-old client. Which behavior by the client indicates adult cognitive development

A. Has perceptions based on reality.
B. Assumes responsibility for actions.
C. Generates new levels of awareness.
D. Has maximum ability to solve problems and learn new skills.
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