题目内容

表面粗糙度参数值越小,表面质量越( )。

A. 高
B. 低
C. 合适

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标注尺寸时,可以形成封闭的尺寸链。

A. 对
B. 错

表面粗糙度数值越大,零件的表面越光滑。

A. 对
B. 错

Listen carefully and answer thefollowing multiple-choice questions based on the interview.1)The following aspects of Mexican culture are difficult for the interviewee to adapt to,except_________.A.classismB.living in big familiesC.shaking hands with peopleD.not giving your back to anybody when you say goodbye at a party2) According to the interviewee, Mexicans are_________.A. humorousB. carefreeC. casualD. awkward3) Fromtheinterviewee’sperspective,Mexicans are similar to Chinese except that____________________.A. they would really appreciate it if you learn to say just a few words in theirlanguageB. they respect the elderlyC. they use hand gestures a lotD. they will make a lot of personal remarks about your body if they’re friends with you4) What does the interviewee suggest Chinese people should pay special attention to when communicating with Mexicans?A. Using a lot of hand gestures when talking with them.B. Accepting gifts instead of refusing them.C. Inviting them home for coffee.D. Learning to speak Spanish.

以下不是海洋生物新药制剂类型的选择依据的是( )。

A. 以成本价格为主来考虑制剂类型
B. 临床需要和用药对象
C. 药物性质和处方剂量
D. 充分考虑安全性

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