以下是POWERPCB的布线时提供走线的方式有（）。 A.直角 B.对角_爱下问搜题

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问题多项选择题

以下是POWERPCB的布线时提供走线的方式有（）。

A.直角

B.对角和直角

C.任意角度和直角

答案

参考答案：A, B

问答题

怎样培养和组织学生的观察力

单项选择题

C

Jill lived with her grandma. The old woman was p enough that she could do everything herself at home.
As soon as Jill began to tidy the rooms or wash something, her grandma stopped her and told her to work hard at her lessons. Jill had to listen to her grandma and spent all her time on her study. So she went to college at last.
Now the girl has left college. She did well in all her subjects and easily found work in Mr. Brown’s company. She was sure Mr. Brown would put her in an important position(位置).
On the first day the boss gave her a broom and said, "Your first work is to sweep the offices. "
"What" the girl called out in surprise," I’m a college student, you know. "
"I’m sorry I don’t know that. Here, give me the broom and let me show you!\

Jill easily found work because ______.

A．she was p, too

B．she knew Mr. Brown

C．she could do everything

D．she did well in her lessons