以下可用于检测病毒感染者体内特异性抗体的试验有（） A.蚀斑形成试验 B.血凝抑制试

读“亚洲范围示意图”，回答问题。

（1）从东西半球来看，亚洲大部分位于_____半球；从南北半球来看，亚洲大部分位于_____半球。

（2）亚洲西面与A______洲接壤，西南以___________运河与B非洲为界，东南面隔海与C_______洲相望，东北以___________海峡与D北美洲为界。

（3）写出下列字母代表的海洋名称。

E__________________；F___________________；G___________________

You may not pay much attention to your daily elevator ride. Many of us use a lift several times during the day without really thinking about it. But Lee Gray, PhD, of the University of North Carolina, US, has made it his business to examine this overlooked form of public transport. He is known as the “Elevator Guy”.

“The lift becomes this interesting social space where etiquette (礼仪) is sort of odd (奇怪的),” Gray told the BBC. “They [elevators] are socially very interesting but often very awkward places.”

We walk in and usually turn around to face the door. If someone else comes in, we may have to move. And here, according to Gray, liftusers unthinkingly go through a set pattern of movements. He told the BBC what he had observed.

He explained that when you are the only one inside a lift, you can do whatever you want – it’s your own little box.

If there are two of you, you go into different corners, standing diagonally (对角线地) across from each other to create distance.

When a third person enters, you will unconsciously form a triangle. And when there is a fourth person it becomes a square, with someone in every corner. A fifth person is probably going to have to stand in the middle.

New entrants to the lift will need to size up the situation when the doors slide open and then act decisively. Once in, for most people the rule is simple – look down, or look at your phone.

Why are we so awkward in lifts?

“You don’t have enough space,” Professor Babette Renneberg, a clinical psychologist at the  Free University of Berlin, told the BBC. “Usually when we meet other people we have about an arm’s length of distance between us. And that’s not possible in most elevators.”

In such a small, enclosed space it becomes very important to act in a way that cannot be construed (理解) as threatening or odd. “The easiest way to do this is to avoid eye contact,” she said.

小题1:The main purpose of the article is to _____.

A．remind us to enjoy ourselves in the elevator

B．tell us some unwritten rules of elevator etiquette

C．share an interesting but awkward elevator ride

D．analyze what makes people feel awkward in an elevator小题2:According to Gray, when people enter an elevator, they usually _____.

A．turn around and greet one another

B．look around or examine their phone

C．make eye contact with those in the elevator

D．try to keep a distance from other people小题3:Which of the following describes how people usually stand when there are at least two people in an elevator?

小题4:The underlined phrase “size up” in Paragraph 7 is closest in meaning to _____.

A．judge

B．ignore

C．put up with

D．make the best of小题5:According to the article, people feel awkward in lifts because of _____.

A．someone’s odd behaviors

B．the lack of space

C．their unfamiliarity with one another

D．their eye contact with one another

关于蜘蛛痣正确的说法是

A．是一种似蜘蛛状的红痣

B．与体内性激素的多少有关

C．大多出现于上腔静脉回流区

D．妇女在妊娠期间皆可出现，但分娩后即消失

E．有蜘蛛痣，即可诊断为肝硬化

对习惯性颞颌关节脱位的药物内治法主要是（）。

A.舒筋活络

B.培补脾胃

C.调补肝肾

D.补益气血

E.祛风通络

为什么说用系统工程的方法解决安全问题，能够有效地防患于未然？