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【单选题】
下图为万山汞矿床的典型矿石，图中的红色矿物为A.
辰砂
B.
雄黄
C.
雌黄
D.
尖晶石
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反馈参考答案：
举一反三
【单选题】She ______ want to be a policewoman, because she thinks it’s kind of dangerous. A、 isn’t
A.
aren’t
B.
don’t
C.
doesn’t
【简答题】闭合性多根多处肋骨骨折应如何治疗？
【简答题】Section B Conversation One Questions 9 to 11 are based on the conversation you have just heard. 9. A. From the wanted column. B. From some of her friends. C. From a telephone directory. D. From a tele...
【单选题】渗漉法的特点及适用范围
A.
常温或温热 (60 ～ 80℃) 条件，适用有效成分遇热不稳定或含大量淀粉、树胶、果胶、粘液质的中药
B.
常温下不断向粉碎中药材中添加新鲜溶剂，消耗溶剂量大、费时、操作麻烦
C.
加水煮沸，简便，但含挥发性成分或有效成分遇热易分解的中药材不适用
D.
用易挥发有机溶剂加热回流提取，缺点是对热不稳定成分不适用，溶剂消耗量大，操作麻烦
【单选题】— Why does Gina want a policewoman? — Because she thinks it's interesting job. [ ]
A.
to be; a
B.
be; a
C.
be; an
D.
to be; an
【单选题】- ________________? - She is a policewoman.
A.
What do you do
B.
What does he do
C.
What does she do
D.
What does your father do
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