一个高阻抗的电路中，若用指针式万用表测量一个电阻上电压被认为要影响其精度时，可改用数字式万用表来测量电压。
参考答案：对
句型转换，请根据要求改写下列句子，每空一词。
1. Tom had to buy a new computer. (改为否定句)
Tom _____ _____to buy a new computer.
2. The music is so loud that I can’t finish the writing task. (改为简单句)
The music is _____ loud for me _____ finish the writing task.
3. In some way, this answer is wrong, that answer is wrong, too. (保持句意基本不变)
In some way, _____ of the two answers is _____.
4. "Lily, do you want to open a micro-blog account?" he asked. (改为间接引语)
He asked Lily _____ she _____ to open a micro-blog account.
5. He seldom watches the international news.(改为反意疑问句)
He seldom watches the international news, _____ _____?
《祭侄文稿》的作者是______。
A．王羲之
B．颜真卿
C．柳公权
D．张旭
