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【单选题】
滤料应具有足够的机械强度和( )性能,并不得含有有害成分,一般可采用石英砂、无烟煤和重质矿石等。A.
水力
B.
耐磨
C.
吸附
D.
抗蚀
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反馈参考答案：
举一反三
【单选题】Q3 When do you start eating?
A.
As soon as you arrive at the lunch or dinner.
B.
As soon as everyone is served.
C.
When a speech is being made.
D.
When the host begins eating.
【单选题】听力原文：W: When shall we meet? M: At seven o'clock. Q: When will they meet? (20)
A.
They will meet in front of the bank.
B.
They will meet at seven o'clock.
C.
They will meet at ten o'clock.
【单选题】下面对图层组描述错误的是
A.
在图层选项栏中单击“创建新组”按钮可以新建一个图层组
B.
可以将所有链接图层放到一个新的图层组中
C.
所有链接图层不能一起放到一个新的图层组中
D.
在图层组内可以对图层进行删除和复制
【单选题】Q:When will they hold the safety meeting?
A.
Before bunkering.
B.
After bunkering.
C.
During bunkering.
D.
When bunkering.
【单选题】不需进行“不溶性微粒检查”的制剂是( )
A.
用于静脉注射用的溶液型注射剂
B.
注射用无菌原料药
C.
注射用的浓溶液
D.
眼用液体制剂
E.
供静脉注射用无菌原料药
【单选题】He didn't give me _______ time when we would meet next time. [ ]
A.
certainly.
B.
sure
C.
surely
D.
certain
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