用支线法求实长，可在直线的（）视图中任意端点引出支线，不必分析所引支线是否符合该线空

My wife Julie and I were out on the road that runs around where we live, when we saw an old worn-out dog stumbling (蹒跚) painfully up the road. We stopped, bent down, talked gently to the dog and patted it. I checked and there was a collar with a phone number. I called but no one answered.

The dog was painfully thin. So Julie ran home to get some of our dog’s food while I tried to encourage the dog. After Julie came back, we sat down on the sidewalk while our new friend made short work of the food. Eventually we got her home.

After trying for many times we got a response from the number. A lady came around with a bunch of flowers for us. She explained that Tara had been her father’s dog. She was very old and got lost that morning. So, Tara was safely returned home.

Here is the truth of the story:

Actually Julie and I were out that morning because I was leaving. She was trying to persuade me to come back, but I wasn’t hearing anything that made that sound likely.

I was about to turn and go when an old black dog walked between us and almost fell down. Suddenly we had something more important than our problem to worry about. There was a creature in need right before us and we had to work together to help it.

We did help it. And here I am writing the story in my own home, in my own family.

In the song “Love Is Not a Fight” Warren Barfield talks about marriage. At one point he sings, “And if we try to leave, may God send angels (天使) to guard the door.”

Sometimes angels come disguised (伪装) as dogs.

小题1:How was the dog when found?

A．Too weak to walk.

B．Thin and worn out.

C．Unable to eat food.

D．Homeless but gentle.小题2: We can infer from Paragraph 2 that         .

A．the dog didn’t go with the writer

B．the writer had his own pet dog

C．Julie bought some food for the dog

D．the dog didn’t eat any of the food小题3:The underlined part “our problem” in the passage refers to the fact that         .

A．the writer didn’t want to take Julie’s advice

B．an old black dog appeared in front of them

C．Julie disagreed with the writer’s travel on business

D．the couple had some trouble with their marriage小题4:Which of the following is the best title for the passage?

A．An Angel Dog

B．A Helpful Couple

C．Saving the Dog

D．A Famous Song

如图所示，理想变压器原线圈匝数为n₁，两个副线圈匝数分别为n₂和n₃，且n₁：n₂：n₃=4：2：1，输入电压U₁=16V，R₁=R₂=10Ω，则输入的电流I₁大小是（　　）

A．0.4A

B．0.1A

C．0.5A

D．以上答案都不对

8086如何响应一个可屏蔽中断请求？简述响应过程。

农业政策实验的主要步骤是（）、（）、（）。

“法无明文规定不为罪，法无明文不处罚”是我国刑法( )基本原则的表述。

A．公平、公正

B．罪刑法定

C．刑事法律面前人人平等

D．罪刑相适应