如图所示是小宁同学为LED多功能充电风扇设计的控制电路图,电路中有两个控制开关,

题型:选择题

问题:

如图所示是小宁同学为 LED多功能充电风扇设计的控制电路图,电路中有两个控制开关,其中开关S1只控制应急照明LED灯L,开关S2只控制电风扇M,下列的四个电路图中,符合上述要求的是(  )

A.

B.

C.

D.

考点:电路图及元件符号
题型:选择题
My name is Tony. I’m an         boy. And I’m a student of No.5 Middle School. There      four people in my family. They are my parents, my sister and me. My father is a teacher. He teaches English. He is good at         English. He is strict        his students. My mother is a doctor. It’s 10 kilometers from our home to hospital. She goes to work        bus every morning. It takes her about 20 minutes. My sister is a student, too. She must get up early. She can’t       late for class. She must read a book before she can watch TV. She has to        the rules. She thinks she        has any fun .She feels unhappy . I have a pet. It’s a dog. It’s very cute and      . His name is Lazy. That’s a good name for him, because he is kind of lazy and he sleeps all day. He likes to walk on two legs. He can dance      .
小题1:
A.11-year-oldB.11-years-oldC.11 year oldD.11 years old
小题2:
A.isB.areC.hasD.have
小题3:
A.speakB.speakingC.talksD.talking
小题4:
A.toB.inC.atD.with
小题5:
A.inB.onC.byD.with
小题6:
A./B.beC.isD.are
小题7:
A.breakB.followC.teachD.play
小题8:
A.everB.sometimesC.neverD.always
小题9:
A.friend B.friendsC.friendyD.friendly
小题10:
A.goodB.wellC.niceD.better
题型:选择题

程序设计语言的选择不应该以哪项指标为选择标准。()

A.使程序容易测试

B.使软件开发的总成本降低

C.使程序复杂难懂

D.使程序可移植性提高

题型:选择题

把铁片分别放入下列溶液中,铁片会溶解,而且溶液质量会减轻,则此溶液是[ ]

A.稀硫酸

B.硫酸铜溶液

C.稀盐酸

D.硫酸亚铁溶液

题型:选择题

以下关于涅槃说法正确的是?()

A、涅槃是道教用语

B、涅槃一词来自古埃及

C、涅槃是每个人都能进入的境界

D、涅槃也即成佛

题型:选择题

沥青老化后,在物理力学性质方面,表现为针入度(),延度(),软化点增高。

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