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【单选题】
三相半控桥式整流电路电感性负载每个晶闸管电流平均值是输出电流平均值的{.XZ}。A.
1/6
B.
1/4
C.
1/2
D.
1/3
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举一反三
【简答题】According to Chinese culinary tradition, fish symbolize surplus and_______________.
【多选题】As to the connotations of plants and animals, which of the following statements are true?
A.
Fish has an underlying meaning of “rich and have a surplus” in both Chinese and English cultures.
B.
In English, bat is a symbol of happiness and blessing.
C.
In English, narcissus symbolizes self-obsession, while in Chinese, it stands for family reunion and good fortune.
D.
In English, laurel is the sacred plant of Apollo, the God of Sun.
【单选题】在齿轮油泵装配图中,序号8的零件的作用是
A.
mg src="http://p.ananas.chaoxing.com/star3/origin/5c39e198ec4289d187de1a4b22451bf9.gif">
B.
固定
C.
密封防漏
D.
润滑
E.
提高装配精度
【单选题】大多数情况下,用普通的肥皂和水彻底冲洗对于清除手部污染就足够了。但在高度危险的情况下,建议使用杀菌肥皂。手要完全抹上肥皂,搓洗至少( ) 秒钟,用干净水冲洗后再用干净的纸巾或毛巾擦干(如果有条件,可以使用暖风干手器)。
A.
10
B.
15
C.
20
D.
25
【判断题】“Fish” and “surplus” in Chinese have the same pronunciation. Through the homophony of the two words, people express their wishes for longevity of the old people.
A.
正确
B.
错误
【简答题】下列是实验室常用的几种仪器。 （1）写出用于吸取和滴加少量液体的仪器标号________。 （2）除去FeSO 4 溶液中混有的少量CuSO 4 杂质，通常要加入过量的________，相应的化学方程式________，充分反应后过滤，必须用到上述仪器中的________（填标号）。 （3）配制500g溶质质量分数为0.5%的高锰酸钾溶液对种子进行消毒，需高锰酸钾_______g，称取药品时用到的...
【判断题】Just like in Chinese, fish in English also means "rich and have a surplus.
A.
正确
B.
错误
【判断题】“Fish” and “surplus” in Chinese have the same pronunciation. Through the homophony of the two words, people express their wishes for longevity of the old people.
A.
正确
B.
错误
【简答题】因非同一控制下企业合并增加的子公司，在编制合并利润表时，应将该子公司期初至报告期末的收入、费用、利润纳入合并利润表。（）
【判断题】Usually, on Chinese New Year’s eve for the reuniondinner, the fish “yu” is one of the most popular foods, it symbolizes theabundance and surplus of the coming year.
A.
正确
B.
错误
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