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【单选题】
下列哪种基质不是水溶性软膏基质（ ）A.
聚乙二醇
B.
甘油明胶
C.
羊毛脂
D.
羧甲基纤维素钠
E.
甲基纤维素
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皮皮学刷刷变学霸
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【简答题】Besides the unhealthy food and drink, the vanishing of ______also contributes to the problem of childhood obesity.
【单选题】Which drink is on the top of the Food Pyramid?
A.
Chocolate milk
B.
Skim milk
C.
Orange juice
D.
Soft drink
【单选题】Though they are______food and drink, the men are cheerful and confident that they will get out soon.
A.
running across
B.
running down
C.
running over
D.
running out of
【单选题】My favourite _________ is milk. A. drink B. food C. vegetable
A.
drink
B.
food
C.
vegetables
【简答题】在单管共射极放大电路中,如果静态工作点设置过高,如()失真。
【单选题】I hope you ____ more milk and ____ less junk food. [ ]
A.
drink; eat
B.
to drink; to eat
C.
eat; drink
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