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【多选题】
若要改变单相电压型逆变电路的输出负载电压,可采用下列方法( )。 A 调节直流侧电压 C 调节电路工作频率 B 调节直流侧电流 D 采用移相调压方式
A.
选择1
B.
选择2
C.
选择3
D.
选择4
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参考答案：
举一反三
【单选题】听力原文：W: You wouldn't be interested in working this summer to make some extra money,would you? M: No, I wouldn't. What does the man mean?
A.
He is very interested in working.
B.
He'll work even though he doesn't want to.
C.
He doesn't need much money.
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【多选题】对于一个已经创建了的Connection对象,其connectionstring属性的相关参数描述正确的是:
A.
pwd : 指定与UID用户名相应的登录密码
B.
UID或USER ID ：指定用户登录名。
C.
database:指定将要访问的SQL Server上的数据库的名称
D.
以上都不对
查看完整题目与答案
【单选题】听力原文：W: Good morning, I am calling to inquire about your book shelves. M: Yes, what would you like to know? W: Well, I'd like to check the size first. M: The standard point is 3.2 meters wide, 1.8 met...
A.
The discount.
B.
The weight.
C.
The size.
D.
The distance.
查看完整题目与答案
【单选题】听力原文：W:You wouldn't be interested in working this summer to make some extra money, would you? M:Not. I wouldn't. What does the man mean?
A.
He is very interested in working.
B.
He'll work even though he doesn't want to.
C.
He doesn't need much money.
查看完整题目与答案
【单选题】Whita:How are you? Harrison: I'm fine. Thank you. And you? White:_______
A.
Me, too.
B.
I, too.
C.
Fine.
D.
Thanks.
查看完整题目与答案
【单选题】UID与用户名的关系
A.
一个UID可以对应多个用户名
B.
一个用户名可以对应多个UID
C.
UID和用户名都可以修改
D.
只可以修改用户名
查看完整题目与答案
【单选题】血细胞仪白细胞分类技术的改进不包括
A.
光散射技术
B.
细胞化学技术
C.
射频技术
D.
容抗法
查看完整题目与答案
【单选题】听力原文：W: Good morning, I am calling to inquire about your book shelves. M: Yes, what would you like to know? W: Well, I'd like to check the size first. M: The standard point is 3.2 meters wide, 1.8 met...
A.
The discount.
B.
The weight.
C.
The size.
D.
The distance.
查看完整题目与答案
【单选题】听力原文：M: Would you like to go to a party tonight? W: That sounds like a good idea. M: Would 7:00 be OK? W: That's fine. I'm looking forward to it. What will the speakers do over tonight?
A.
Go to a party.
B.
Stay at home.
C.
Climb mountains.
查看完整题目与答案
【单选题】听力原文：W: Professor, (19)I'm going to take part in a debate on advertising tomorrow. Would you please give me some hint? M: That's interesting. I should like to hear what young people think about advert...
A.
To ask the man to debate with her.
B.
To get some suggestion about advertisement.
C.
To invite him to be a judge for a debate.
D.
To get some ideas for a debate.
查看完整题目与答案
相关题目：
【单选题】听力原文：W: You wouldn't be interested in working this summer to make some extra money,would you? M: No, I wouldn't. What does the man mean?
A.
He is very interested in working.
B.
He'll work even though he doesn't want to.
C.
He doesn't need much money.
查看完整题目与答案
【多选题】对于一个已经创建了的Connection对象,其connectionstring属性的相关参数描述正确的是:
A.
pwd : 指定与UID用户名相应的登录密码
B.
UID或USER ID ：指定用户登录名。
C.
database:指定将要访问的SQL Server上的数据库的名称
D.
以上都不对
查看完整题目与答案
【单选题】听力原文：W: Good morning, I am calling to inquire about your book shelves. M: Yes, what would you like to know? W: Well, I'd like to check the size first. M: The standard point is 3.2 meters wide, 1.8 met...
A.
The discount.
B.
The weight.
C.
The size.
D.
The distance.
查看完整题目与答案
【单选题】听力原文：W:You wouldn't be interested in working this summer to make some extra money, would you? M:Not. I wouldn't. What does the man mean?
A.
He is very interested in working.
B.
He'll work even though he doesn't want to.
C.
He doesn't need much money.
查看完整题目与答案
【单选题】Whita:How are you? Harrison: I'm fine. Thank you. And you? White:_______
A.
Me, too.
B.
I, too.
C.
Fine.
D.
Thanks.
查看完整题目与答案
【单选题】UID与用户名的关系
A.
一个UID可以对应多个用户名
B.
一个用户名可以对应多个UID
C.
UID和用户名都可以修改
D.
只可以修改用户名
查看完整题目与答案
【单选题】血细胞仪白细胞分类技术的改进不包括
A.
光散射技术
B.
细胞化学技术
C.
射频技术
D.
容抗法
查看完整题目与答案
【单选题】听力原文：W: Good morning, I am calling to inquire about your book shelves. M: Yes, what would you like to know? W: Well, I'd like to check the size first. M: The standard point is 3.2 meters wide, 1.8 met...
A.
The discount.
B.
The weight.
C.
The size.
D.
The distance.
查看完整题目与答案
【单选题】听力原文：M: Would you like to go to a party tonight? W: That sounds like a good idea. M: Would 7:00 be OK? W: That's fine. I'm looking forward to it. What will the speakers do over tonight?
A.
Go to a party.
B.
Stay at home.
C.
Climb mountains.
查看完整题目与答案
【单选题】听力原文：W: Professor, (19)I'm going to take part in a debate on advertising tomorrow. Would you please give me some hint? M: That's interesting. I should like to hear what young people think about advert...
A.
To ask the man to debate with her.
B.
To get some suggestion about advertisement.
C.
To invite him to be a judge for a debate.
D.
To get some ideas for a debate.
查看完整题目与答案
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