烘干法测定水分适合于
A.含挥发性成分的药材
B.含挥发性成分的贵重药材
C.不含或少含挥发性成分的药材
D.动物类药材
E.矿物类药材
参考答案:C
烘干法测定水分适合于
A.含挥发性成分的药材
B.含挥发性成分的贵重药材
C.不含或少含挥发性成分的药材
D.动物类药材
E.矿物类药材
参考答案:C
A. how to pronounce the word
B. the spelling of the word
C. who used the word first
D. how to use the word
3. In an English-Chinese dictionary, the last word _____. [ ]
A. begins with Z
B. begins with A
C. is a short one
D. is not often used
4. Which group of words is in the right order in an English-Chinese dictionary? [ ]
A. perhaps, produce, plenty
B. straight, subject, surprise
C. century, center, business
D. foreign, entrance, headache
5. In the passage the writer tries to tell us that _____. [ ]
A. we have to use a dictionary when we read something in English
B. an English-Chinese dictionary can tell us everything about a word
C. an English-Chinese dictionary can help us a lot in our English study
D. all English-Chinese dictionary are the same