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【单选题】
Tea can be classified as green tea, black tea, oolong tea, brick tea, scented tea by the method of processing. Which of the following types of tea is the representative of oolong tea?A.
Dahongpao.
B.
Tieguanyin.
C.
Pu-erh.
D.
Jasmine tea.
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举一反三
【单选题】In analyzing a problem we should do all the following except_____.
A.
recognize and define the problem
B.
look for information to make the problem clearer
C.
have suggestions for a possible solution
D.
find a solution by trial or mistake
【简答题】Ⅰ．如图所示是分离混合物时常用的仪器，回答下列问题： （1）写出仪器A、C、E的名称______ （2）分离以下混合物应该主要选用什么仪器？（填字母符号） 食用油和酒精：______ 汽油和水：______ Ⅱ．实验室用固体烧碱配制200mL 0.5mol?L -1 的NaOH溶液． （1）需称量______ g 烧碱，应放在______中称量、溶解． （2）完成此配制实验，除了量筒，烧杯，...
【单选题】We should do except ______ when practicing yoga?
A.
empty stomach
B.
warm up arms, legs and spine
C.
stretch much and quickly
D.
concentrate and breath deeply
【多选题】在R-L-C串联的正弦交流电路中,调节其中电容C时,电路性质变化趋势为
A.
调大电容，电路的感性增强
B.
调大电容，电路的容性增强
C.
调小电容，电路的感性增强
D.
调小电容，电路的容性增强
【单选题】In analyzing a problem we should do all the following EXCEPT ______.
A.
recognize and define the problem
B.
look for information to make the problem clearer
C.
have suggestions for a possible solution
D.
find a solution by trial and error
【简答题】（1）如图所示是分离混合物时常用的仪器，回答下列问题： ①写出仪器C、E的名称______、______ ②分离以下混合物应该主要选用上述什么仪器？（填一个字母符号） 粗盐和泥沙：______花生油和水：______ ③若向C装置中加入碘水和足量CCl 4 ，充分振荡后静置，会观察到什么现象？______ （2）请根据所提供的试剂和仪器，按要求填空： ①气体发生装置A可用来制取氧气，若用E装置收集...
【简答题】Which of the following is true of Paragraph 2? [A] Public-sector unions are prudent in taking actions. [B] Education is required for public-sector union membership. [C] Labor Party has long been fight...
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