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【单选题】
右图为某复杂电路中的一部分。已知U1=12V,U2=3V,R1=4Ω,R2=3Ω,R3=5Ω,R4=6Ω,则整个回路中的电流I=()
A.
-0.5A
B.
0.83A
C.
0.5A
D.
-0.83A
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参考答案:
举一反三
【单选题】Excuse me,where is the meeting room? --Just a second. I′ll have someone ____ you there.
A.
takes
B.
take
C.
taking
D.
to take
查看完整题目与答案
【单选题】关于下述金属蛋白酶抑制剂的两个合成方案的叙述正确的有( )。【图片】【图片】
A.
都是 5 步反应
B.
将对映异构体的拆分放在合成路线的前端能降低成本。
C.
方案 2 较方案 1 更简便
D.
将对映异构体的拆分放在合成路线的后端能降低成本。
查看完整题目与答案
【单选题】Excuse me, where is the nearest supermarket? ________
A.
You got lost.
B.
You can't miss it.
C.
It is easy to get downtown.
D.
It is opposite the bank.
查看完整题目与答案
【单选题】The lovely girl is from Class 6.( ) name is Alice.
A.
Her
B.
His
C.
Your
D.
Its
查看完整题目与答案
【简答题】The girl _____(not like) to eat dessert.
查看完整题目与答案
【单选题】-Excuse me, do you k now ? -I'm sorry. I am new here. [ ]
A.
where is the nearest bus station
B.
where the nearest bus station is
C.
where the nearest bus station was
查看完整题目与答案
【单选题】–Excuse me. _______ –Just go straight and turn left. It’s on your right.
A.
Can I help you?
B.
Where is the nearest station?
C.
What’s the matter?
D.
What would you like to eat?
查看完整题目与答案
【单选题】Do you know the girl ______under the tree?
A.
stand
B.
to stand
C.
standing
D.
stood
查看完整题目与答案
【单选题】—Excuse me. Where is the supermarket, please? —Go along the Green Street and then ______ left. [ ]
A.
take
B.
turn
C.
make
D.
get
查看完整题目与答案
【多选题】关于下述金属蛋白酶抑制剂的两个合成方案的叙述正确的有( )。
A.
将对映异构体的拆分放在合成路线的后端能降低成本。
B.
都是5步反应。
C.
方案2较方案1更简便。
D.
将对映异构体的拆分放在合成路线的前端能降低成本。
查看完整题目与答案
相关题目:
【单选题】Excuse me,where is the meeting room? --Just a second. I′ll have someone ____ you there.
A.
takes
B.
take
C.
taking
D.
to take
查看完整题目与答案
【单选题】关于下述金属蛋白酶抑制剂的两个合成方案的叙述正确的有( )。【图片】【图片】
A.
都是 5 步反应
B.
将对映异构体的拆分放在合成路线的前端能降低成本。
C.
方案 2 较方案 1 更简便
D.
将对映异构体的拆分放在合成路线的后端能降低成本。
查看完整题目与答案
【单选题】Excuse me, where is the nearest supermarket? ________
A.
You got lost.
B.
You can't miss it.
C.
It is easy to get downtown.
D.
It is opposite the bank.
查看完整题目与答案
【单选题】The lovely girl is from Class 6.( ) name is Alice.
A.
Her
B.
His
C.
Your
D.
Its
查看完整题目与答案
【简答题】The girl _____(not like) to eat dessert.
查看完整题目与答案
【单选题】-Excuse me, do you k now ? -I'm sorry. I am new here. [ ]
A.
where is the nearest bus station
B.
where the nearest bus station is
C.
where the nearest bus station was
查看完整题目与答案
【单选题】–Excuse me. _______ –Just go straight and turn left. It’s on your right.
A.
Can I help you?
B.
Where is the nearest station?
C.
What’s the matter?
D.
What would you like to eat?
查看完整题目与答案
【单选题】Do you know the girl ______under the tree?
A.
stand
B.
to stand
C.
standing
D.
stood
查看完整题目与答案
【单选题】—Excuse me. Where is the supermarket, please? —Go along the Green Street and then ______ left. [ ]
A.
take
B.
turn
C.
make
D.
get
查看完整题目与答案
【多选题】关于下述金属蛋白酶抑制剂的两个合成方案的叙述正确的有( )。
A.
将对映异构体的拆分放在合成路线的后端能降低成本。
B.
都是5步反应。
C.
方案2较方案1更简便。
D.
将对映异构体的拆分放在合成路线的前端能降低成本。
查看完整题目与答案
参考解析:
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