在所示的电路中,电阻R=2.0Ω,电源的内电阻r=1.0Ω,不计电流表的内阻.闭

题型:选择题

问题:

在所示的电路中,电阻R=2.0Ω,电源的内电阻r=1.0Ω,不计电流表的内阻.闭合开关S后,电流表的示数I=0.5A,则电源的电动势E等于(  )

A.1.0 V

B.1.5 V

C.2.0 V

D.3.0 V

考点:闭合电路欧姆定律
题型:选择题
根据日记内容,用方框中所给词的适当形式填空。
instead, fly, banana, drink, climb, early, I, sun
     May 27, Saturday                   1______
     I got up very 2______ this morning. After a quick breakfast, I went to the zoo with my classmates.
We went there by bus. There are many kinds of animals there. We liked monkeys best. We fed them
with some   3______ . We stayed there for about an hour. Then we went to Qingshao Lake. We saw
many people 4______kites in different colors near the lake.We had no kites,so we went boating5______.
The water in the lake is very clean.
     It was nearly 12 o'clock. We began 6______ apple juice and eat some sandwiches for lunch. After
that, some of us went fishing and some of us 7______ the hill. We went back home at about four o'clock.
What a happy day we had today. I enjoyed 8______ a lot!
题型:选择题

合伙企业解散:清算人由全体合伙人担任,未能由全体合伙人担任清算人的,经全体合伙人同意,可以自合伙企业解散后15日内指定一名或数名合伙人,或委托第三人担任清算人。 ( )

题型:选择题

2012年政府工作报告提出,完善和落实促进非公有制经济发展的各项政策措施,打破垄断,放宽准入,鼓励民间资本进入铁路、市政、金融、电信、教育等领域。这说明(   )。

①非公有制经济是我国经济制度的基础

②非公有制经济在促进经济增长方面发挥着重要的作用

③非公有制经济是生产资料归部分劳动者所有的一种经济形式

④国家鼓励、支持、引导非公有制经济健康发展

A.①③

B.②③

C.①④

D.②④

题型:选择题

十进制数68与八进制数()是相等的。

A.68

B.104

C.105

D.106

题型:选择题

下列不属于鳃裂囊肿及瘘管临床表现的是()

A.无痛性肿块

B.咽痛、吞咽困难

C.随吞咽上下活动

D.外瘘口分泌物溢出

E.与皮肤粘连

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