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【单选题】
一 台电动机与电容器并联,在电压不变时,则 ( )。(1分)
A.
电动机电流减少,电动机功率因数提高
B.
电路总电流不变,电路功率因数提高
C.
电路总电流增大,电动机电流增大,电路功率因数提高
D.
电路总电流减小,电动机电流不变,电路功率因数提高
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举一反三
【多选题】下列吉林省的城市中,( )是中国历史文化名誉。
A.
长春市
B.
吉林市
C.
四平市
D.
辽源市
E.
集安市
【单选题】根据网络营销产品的具体形式来划分,以下不属于划分类别的是( )。
A.
 实体产品
B.
数字化信息产品
C.
服务产品
D.
电子产品
【单选题】听力原文:W:I think the population of this city has become smaller in the past ten years.The streets are not as crowded as they used to be. M:But I know by the newspaper that there are more people living h...
A.
The population has increased.
B.
The population has decreased.
C.
The population has remained the same.
D.
The population is getting older.
【判断题】体育游戏区别于其他各种游戏的主要特点在于构成学前儿童体育游戏的基础是各种基本动作,是一种体力活动。
A.
正确
B.
错误
【多选题】下列吉林省的城市中,( )是国家历史文化名城。
A.
长春市
B.
吉林市
C.
四平市
D.
辽源市
E.
集安市
【单选题】听力原文:M: I can hardly believe that city has a population of 800,000. W: To be more exact,there are 813,400 people there. What is the population of that city?
A.
800,000.
B.
813,000.
C.
813,400.
【单选题】_______ size and population, how big is the European Union _________ China?
A.
In terms of; compared with
B.
In honor of; comparing with
C.
In addition to; compared to
D.
In favor of; compared to
【单选题】观测某竖直角,盘左读数为94°12′30″,盘右读数为265°47′12″,则指标差为( )。
A.
-9″
B.
9″
C.
-18″
D.
18″
【单选题】听力原文:M: I can hardly believe that city has a population of 980,000. W: to be more exact, there are 982,400 there. Q: What is the population of that city? (3)
A.
918,400
B.
980000
C.
982400
【单选题】观测某竖直角,盘左读数为94°12′30′′,盘右读数为265°47′12′′,则指标差为_______′′。
A.
+18″
B.
+9″
C.
-18″
D.
-9″
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