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【多选题】
关于混悬剂的说法正确的有
A.
制备成混悬剂后可产生一定的长效作用
B.
毒性或剂量小的药物应制成混悬剂
C.
沉降容积比小说明混悬剂稳定
D.
干混悬剂有利于解决混悬剂在保存过程中的稳定性问题
E.
润湿剂可被吸附于微粒表面,增加其亲水性,使混悬剂分散效果较好
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参考答案:
举一反三
【单选题】Choose the best way to approach the guest in the following situation. Several guests remain in the restaurant after closing time. You say:
A.
You have to leave. We are closed.
B.
Can I ask that you leave?We have to clean up.
C.
I'm sorry for the inconvenience Sir, but our staff have to clean the restaurant.
【单选题】百草枯中毒的主要致死原因为
A.
进行性肺纤维化
B.
急性肾功能衰竭
C.
中毒性肝损害
D.
中毒性心肌炎
E.
脑梗
【单选题】百草枯中毒的主要致死原因为
A.
进行性肺纤维化
B.
急性肾功能衰竭
C.
中毒性肝损害
D.
中毒性心肌炎
E.
急性肝功能衰竭
【单选题】三号的成熟之处体现在()。
A.
微笑面对输赢
B.
与世无争
C.
不走捷径
D.
学会低调
【单选题】Choose the best way to approach the guest in the following situation. A person asks you which room is Mr Smith in. You say:
A.
I cannot tell you.
B.
If you ask at reception, they may be able to help.
C.
I don't know.
【单选题】Choose the best way to approach the guest in the following situation. The guest orders salmon, but there is no salmon left. You say:
A.
Oh, I'm sorry. We're all out of salmon. Perhaps the trout would be a good choice for you?
B.
No, there's no salmon left.
C.
No, the salmon is finished for the night.
【单选题】在频率响应中,幅频特性是谐波稳态输出与输入的振幅(),相频特性是谐波稳态输出与输入的相位()。
A.
差、差
B.
比、比
C.
比、差
D.
差、比
【单选题】Choose the best way to approach the guest in the following situation. If a guest says ''Thank you''. You say:
A.
No worries.
B.
You are most welcome.
C.
Not a big deal.
【简答题】试求图示各杆1-1,2-2,3-3截面上的轴力,并作轴力图。
【单选题】百草枯中毒的主要致死原因为
A.
进行性肺纤维化
B.
急性肾功能衰竭
C.
中毒性肝损害
D.
中毒性心肌炎
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