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【简答题】
看图完成对话。 1. Girl: ________________________ Boy:Thank you. 2. Man: Do you want some oranges? Girl:  ________________________ 3. A: Are you a boy? B:  ________________________ 4. Woman: What's it? Girl:  ________________________ 5. Boy:  ________________________ Woman: Yes, it is. 6. Man: Can I help you (你想买什么)? Boy: ________________________
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参考答案:
举一反三
【简答题】C It was at least tow months before Christmas, when nine-year-old Almie Rose told her father and me that she wanted a new bike. Her Barbi bike was just too old, and it needed repairing as well. As Chr...
【判断题】不能用控制信号控制其通断的电力电子器件,称为不可控元器件。
A.
正确
B.
错误
【单选题】CIT是指()。
A.
职务调查问卷法
B.
职业分析问卷法
C.
关键事件法
D.
管理职位描述法
【简答题】欲配制pH=5.0的柠檬酸(H3Cit)缓冲溶液1000mL,问应取浓度均为0.50mol/L的H3Cit和NaOH溶液各多少毫升?要求将0.10mol/L HCl溶液1.0 L加入到10mL此缓冲溶液中,溶液的pH=4.7,已知H3Cit的pKa1=3.13,pKa2=4.76,pKa3=6.40。
【单选题】不能用控制信号来控制其通断的电力电子器件称为( )器件
A.
全控型
B.
不控型
C.
半控型
【单选题】CIt is desirable to have screens on the vents of potable water tanks to ______.
A.
Filter the incoming air
B.
Prevent explosions
C.
Prevent backups
D.
Stop insects from entering
【单选题】“提运单号”栏:
A.
11/LJA-SRD/INV/II/2010
B.
POBUSUBl00207096
C.
10YYT—B018f12)
D.
BAN7239522GP
【简答题】Carl studied in our middle school three years ago. Last August his father found a job in another city and his family moved there. He began to study in the new school and we often write to each other. ...
【单选题】食品中粗蛋白质测定方法中,最为经典的测定方法是:
A.
凯氏定氮法
B.
双缩脲法
C.
紫外分光光度法
D.
水杨酸比色法
【单选题】如图∠AOP=∠BOP=15 o ,PC∥OA,PD⊥OA,若PC=10,则PD等于   【   】
A.
5
B.
C.
10
D.
2.5
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