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【单选题】
不同浓度乙醇选择性浸出药材有效成分,下列表述错误的是A.
乙醇含量10%以上时具有防腐作用
B.
乙醇含量大于40%时，能延缓酯类、苷类等成分水解
C.
乙醇含量50%以下时，适于浸提苦味质、蒽醌类化合物等
D.
乙醇含量50%-70%时，适于浸提生物碱、苷类等
E.
乙醇含量90%以上时，适于浸提挥发油、有机酸、树脂等
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举一反三
【单选题】听力原文：Rex Jink, the manager in charge of accounts would like to remind employees that all end-of-year expense claims are due before the end of next week. Any claims that are received by the claims depa...
A.
To remind employees of a party
B.
To ask workers to file expenses
C.
To check to see if workers have been paid
D.
To help employees understand taxation
【单选题】Go straight. Cross Grand Street. It’s on your (left), just opposite the park.
A.
左边
B.
右边
C.
离开
【简答题】We would remind you that the offer made in our last letter is valid for one month from the date of the letter.
【简答题】______ would remind the tourists of the untimely death of a modem U.S. president.
相关题目：
【单选题】Go straight. Cross Grand Street. It’s on your (left), just opposite the park.
A.
左边
B.
右边
C.
离开
参考解析：
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