如何判断两地间最近航线的方向

题型:问答题 简答题

问题:

如何判断两地间最近航线的方向

考点:地球科学自然地理学自然地理学题库
题型:问答题 简答题
已知:
a
=(2cosx,sinx),
b
=(
3
cosx,2cosx).设函数f(x)=
a
b
-
3
.(x∈R)
求:(1)f(x)的最小正周期;
(2)f(x)的单调增区间;
(3)若x∈[-
π
4
π
4
]时,求f(x)的值域.
题型:问答题 简答题

用于诊治子宫内膜异位症病人的方法是()。

A.宫腔镜

B.腹腔镜

C.剖腹探查

D. * * 后穹窿穿刺

E.腹腔穿刺

题型:问答题 简答题

阅读理解

     At a young age, Patti Wilson was told that she was an epileptic(癫痫患者). Her father, Jim Wilson,

is a morning jogger. One day she said, "Daddy, I want to run with you every day, But I'm afraid I'll have

a seizure(发作).

     Her father told her, "If you do, I know how to handle it, so let's start running!"

    That's just what they did every day. It was a wonderful experience for them to share. And there were

no seizures at all while she was running. After a few weeks, she told her father, "Daddy, I want to break

the world's long-distance running record for women."

     So she did. That year, she wore a T-shirt that read, "I love epileptics" and completed her run to San

Francisco. Her dad ran every mile at her side, and her mom, a nurse, followed in a car behind them in

case anything went wrong.

     In her second year in college, Patti's classmates got behind her. They built a giant poster that read,

"Run, Patti, Run!"

     Her foot was injured when she was running to Portland. A doctor told her she had to stop her run.

     "Doctor, you don't understand," she said, "This isn't a whim(突发的奇想)of mine. I'm doing it to

break the chains on the brains that limit so many others. Isn't there a way I can keep running?" "Yes, but

it would be incredibly painful." The doctor said. She told the doctor just to do it.

     At last she finished the run to Portland and completed her last mile with the governor of Oregon.

                  

1. The underlined part "a morning jogger" in Paragraph 1 means a person __________.

A. who gets up early in the morning

B. who eats breakfast quite early

C. who runs in the morning

D. who reads in the morning

2. When did Patti decide to break the world's long-distance running record for women?

A. When she knew she was a epileptic,

B. After she ran with her father for a few weeks.

C. When she was in her second year in college.

D. After she completed her run to San Francisco

3. What's Patti's mother's attitude towards her run?

A. Supportive.

B. Confident

C. Opposed.

D. Unconcerned

4. Patti continued running after getting injured because _______________.

A. her injury didn't affect her run

B. she wanted to win the competition

C. she wanted to prove that nothing is impossible

D. she wanted to run with the governor of Oregon

5. What would be the best title for the text?

A. The love between a father and his daughter

B. The friendship between epileptics

C. Supper runner ------ Patti Wilson

D. The benefits of running

题型:问答题 简答题

胸痛不伴有Sr段抬高,心肌缺血损伤尚未波及心肌全层,心电图可表现为ST段下移或T波倒置,临床列为()

A.Q波性心肌梗死

B.非Q波性心肌梗死

C.ST段抬高性心梗

D.心内膜下心肌梗死

E.非ST段抬高性心梗

题型:问答题 简答题

患者,男性,65岁。因食管癌术后留置胃管行胃肠减压,以下哪项护理措施不正确

A.术后3~4天持续胃肠减压
B.术后24小时内观察有无吻合口出血
C.每日定时冲洗
D.肛门排气、胃肠减压引流量减少,可考虑拔管
E.胃管脱出后,应立即插入,以免影响引流

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