青少年要增强自我保护意识,在公共场所应如何进行自我保护? ___________

题型:简答题

问题:

青少年要增强自我保护意识,在公共场所应如何进行自我保护?

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考点:防范侵害,自我保护
题型:简答题

关于钢筋混凝土中钢筋的使用,以下说法正确的是()。

A.钢筋混凝土中的钢筋越多,则其强度越高 

B.钢筋混凝土梁的箍筋还具有抗剪作用 

C.钢筋的混凝土保护层厚度由其抵抗钢筋腐蚀性的要求确定 

D.梁的主要受力钢筋应布置在梁的上部

题型:简答题

如图所示,一端缠有铁丝的木棍先后放入两种不同的液体中,两种液体密度分别为ρ、ρ,木棍在两种液体中所受浮力分别为F、F、则(  )

A.F=F;ρ>ρ

B.F=F;ρ<ρ

C. F<F;ρ<ρ

D.F>F;ρ

题型:简答题

钢在加热过程中产生的氧化铁皮,其结构由外到内依次为()。

A.Fe3O4、FeO、Fe2O3

B.Fe3O4、Fe2O3、FeO

C.Fe2O3、Fe3O4、FeO

D.FeO、Fe2O3、Fe3O4

题型:简答题

开具哪项处方时,应有病历记录()

A.麻醉药品

B.精神药品

C.医疗用毒性药品

D.放射性药品

E.超剂量药品

题型:简答题

Brian arrived at San Francisco airport two hours before the flight to Paris. He was wearing three shirts, a jacket, two pairs of socks, a pair of shorts, and two pairs of jeans. He was carrying one small backpack, which was very full, but he didn’t have any other luggage. Brian needed to meet a man named Tony before he checked in for his flight. He found Tony near the Air France counter. Tony gave him a round trip ticket and a small package.

"Give this package to Jean Paul at the airport in Paris. He will have a sign with your name on it. I think you can find him easily," Tony said," You don’t have any luggage, right"

"Only this backpack," Brian answered. "You said I could bring one carry on bag. "

"That’s right. One carry on bag is fine. Have a good trip. "

"Thanks. "

Is Brian a criminal Not at all. He is an air courier. And he paid only $110 for the round trip ticket to Paris. Air couriers get cheap airline tickets because they take important packages and papers to foreign countries. Businesses sometimes need to get packages and papers to people in foreign countries by the next day. Often, the only way they can do this is to use an air courier company. It is not cheap for a business to send a package with an air courier, but it is quick.

Every year about 80,000 people worldwide travel as air couriers. The number of tickets for courier travel is growing by about 10 percent a year. However, air courier travel isn’t for everyone. But if you have very little money, can be flexible about your travel plans, and don’t mind wearing the same clothes for a week, it can be a great way to take a vacation!

An air courier is a person who ().

A.manages a business company in foreign countries

B.organizes international flights for tourists

C.travels around the world with cheap tickets

D.delivers papers and packages to foreign countries

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