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【单选题】
具有敛汗除热作用的药材是A.
麻黄根
B.
五味子
C.
浮小麦
D.
山茱萸
E.
金樱子
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举一反三
【单选题】Here are the differences between a hostel and a hotel except that _____.
A.
hotels are considered more luxurious than hostels and, therefore, more expensive.
B.
hotels are most often associated with backpackers looking for inexpensive, temporary shelter as well as a place for a shower and a meal.
C.
some hostels will allow guests to work in exchange for a discount or even a night’s stay.
D.
a hotel will provide guests with mini refrigerators, wet bars, cable television, wireless Internet service, telephones, irons and hair dryer, but a hostel usually provides none of the above.
【多选题】用正交表 L 25 ( 5 10 )安排实验时,下列叙述中( )是正确的。
A.
有 10 个不同条件的实验
B.
每一个因子可以取两个不同水平
C.
最多可安排 10 个因子
D.
有 25 个不同条件的实验
E.
最多可安排 25 个因子
【简答题】Al（OH） 3 、墨鱼骨粉（主要成分是CaCO 3 ），可用作治疗胃酸过多的药物，其原因是______（用化学方程式回答）．
【单选题】According to the passage, young people can pay less for their stay in the hostel if ______.
A.
they share their food with each other
B.
they can prove they have joined the hostel organization
C.
they have brought enough equipment with them
D.
they can prove that they are from a foreign country
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