皮皮学，免费搜题
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识图填空题: 1. 本工程中 电度表箱的进线为 相 线, 根 25 mm 2 , 根 16 mm 2, , 电度表的型号为 DD862-4K , 额定电流 A ,最大电流 A 。 2. A 栋 2 单元 3 层楼的电度表箱(照明配电箱),共有 户,每户设备按 KW 、电流按 A ,通过 相 线制(火线 L1 、零线 N 和接地保护线 PE ), mm 2 的 BV 型号导线并经过 1 个 C45NL 型号的漏电保护断路器(自动开关)进入户内。 3. 户内开关箱 A-2-3-1 共分成 个回路经自动开关向用户的电气设备配电,其中 W1 为厨房插座回路,配线采用的 BV-3 × 4mm 2 , W 为大卫、插座回路,配线采用的 BV- mm 2 , W5 为 回路,配线采用的 BV- mm 2 。
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举一反三
【单选题】-What do you think about That food ? -__________
A.
I didn't have a lot of time to prepare food, so much of my experience comes from eating in restaurants.
B.
A big change was using public transportation in Tokyo.
C.
Overall, the diet there is a healthy one-low fat.
查看完整题目与答案
【单选题】听力原文：M: Hi, Helen, what do you think of our class in children's literature? W: It's pretty good. I was surprised to see you there. Are you also majoring in elementary education? M: No, I'm not, but as...
A.
Art history.
B.
Elementary education.
C.
American literature.
D.
Psychology.
查看完整题目与答案
【简答题】在以下括号中填上“顺式”或者“反式” 1、烯烃与卤素的加成反应是( )加成; 2、烯烃与氢气的加成反应是( )加成; 3、烯烃发生的硼氢化-氧化反应是( )加成。
查看完整题目与答案
【单选题】甲、乙两数的比是3:2,乙数是18,甲数是什么?
A.
12
B.
27
C.
21
D.
30
查看完整题目与答案
【单选题】在烯烃与卤化氢的加成反应中，卤化氢的反应活性顺序为
A.
HCl＞HI＞HB
B.
HCl＞HI＞HBr＞HF
C.
HBr＞HCl＞HI
D.
HI＞HBr＞HCl
查看完整题目与答案
【简答题】------______________do you like your birthday so much? ---- I always have a party and get lots of presents. A How          B. What         C. Which            D. Why
查看完整题目与答案
【简答题】在烯烃与卤化氢的加成反应中， 卤化氢反应最快（HCl，HBr，HI）
查看完整题目与答案
【单选题】W hich one dose Not carry the same meaning with “ yearn to do ”?
A.
long to do
B.
be destined to do
C.
eager to do
D.
dream of doing
查看完整题目与答案
【单选题】在烯烃与卤化氢的加成反应中，卤化氢的反应活性顺序为（）。
A.
HI＞HBr＞HCl
B.
HBr＞HCl＞HI
C.
HCl＞HI＞HBr＞HF
D.
HCl＞HI＞HB
查看完整题目与答案
【单选题】听力原文：Which do you prefer, a pen or a pencil? (A) My pencil needs sharpening. (B) I prefer to write with a pen. (C) This pen writes well. (33)
A.
B.
查看完整题目与答案
相关题目：
【单选题】-What do you think about That food ? -__________
A.
I didn't have a lot of time to prepare food, so much of my experience comes from eating in restaurants.
B.
A big change was using public transportation in Tokyo.
C.
Overall, the diet there is a healthy one-low fat.
查看完整题目与答案
【单选题】听力原文：M: Hi, Helen, what do you think of our class in children's literature? W: It's pretty good. I was surprised to see you there. Are you also majoring in elementary education? M: No, I'm not, but as...
A.
Art history.
B.
Elementary education.
C.
American literature.
D.
Psychology.
查看完整题目与答案
【简答题】在以下括号中填上“顺式”或者“反式” 1、烯烃与卤素的加成反应是( )加成; 2、烯烃与氢气的加成反应是( )加成; 3、烯烃发生的硼氢化-氧化反应是( )加成。
查看完整题目与答案
【单选题】甲、乙两数的比是3:2,乙数是18,甲数是什么?
A.
12
B.
27
C.
21
D.
30
查看完整题目与答案
【单选题】在烯烃与卤化氢的加成反应中，卤化氢的反应活性顺序为
A.
HCl＞HI＞HB
B.
HCl＞HI＞HBr＞HF
C.
HBr＞HCl＞HI
D.
HI＞HBr＞HCl
查看完整题目与答案
【简答题】------______________do you like your birthday so much? ---- I always have a party and get lots of presents. A How          B. What         C. Which            D. Why
查看完整题目与答案
【简答题】在烯烃与卤化氢的加成反应中， 卤化氢反应最快（HCl，HBr，HI）
查看完整题目与答案
【单选题】W hich one dose Not carry the same meaning with “ yearn to do ”?
A.
long to do
B.
be destined to do
C.
eager to do
D.
dream of doing
查看完整题目与答案
【单选题】在烯烃与卤化氢的加成反应中，卤化氢的反应活性顺序为（）。
A.
HI＞HBr＞HCl
B.
HBr＞HCl＞HI
C.
HCl＞HI＞HBr＞HF
D.
HCl＞HI＞HB
查看完整题目与答案
【单选题】听力原文：Which do you prefer, a pen or a pencil? (A) My pencil needs sharpening. (B) I prefer to write with a pen. (C) This pen writes well. (33)
A.
B.
查看完整题目与答案