题目内容

以下论述中哪项完全符合《建筑结构荷载规范》GB 50009-20017（）
Ⅰ．人防所受的爆炸力是可变荷载
Ⅱ．土压力是永久荷载
Ⅲ．楼梯均布活荷载是永久荷载
Ⅳ．直升机停机坪上直升机的等效荷载是可变荷载

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Something Men Do Not Like to Do
Eric Brown hates shopping. "It's just not enjoyable to me," said the 28-year-old Chicago man who was carrying several shopping bags along the city's main. street,Michigan A venue. "When I’m out____（51）, I basically know what I want to get. I rush in. I buy it. I（52）."Common wisdom says that guys hate to shop. You can ask generations of men. But people who study shopping say that a number of social, cultural and economic factors are now_（53） this "men-hate-to-shop" notion."_（54） social class and age, men say they hate to shop," says Sharon Zukin, a-City University of New York sociology professor. "Yet when you ask them deeper questions, it turns out that they（55） to shop. Men generally like to shop for（56）, music and hardware （硬件）. But if you ask them about the shopping they do for books or music, they'll say, 'Well, that's not shopping. That's（57）."
In other words, what men and women call "buying things" and how they approach that task are（58）.Women will（59） through several 1,000-square-metre stores in search of the perfect party dress. Men will wander through 100 Internet sites in search of the_（60） digital camcorder （摄像放像机）.
Women see shopping as a social event. Men see it as a mission or a（61）to be won."Men are frequently shopping to win," says Mary Ann McGrath, a marketing professor at Loyola University of Chicago. "They want to get the best deal. They want to get the best one, the last one and if they .do that it（62） them happy."
When women shop, "they're doing it in a way where they want（63） to be very happy," says McGrath. "They're kind of shopping for love."
In fact, it is in clothing where we see a male-female_（64） most clearly.Why, complain some men, are all male clothes navy, black or brown But would they wear light green and pink （粉红色的）
These days, many guys wear a sort of "uniform", says Paco Underhill, author of "Why We Buy". "lt's been hard for them to understand what it means to be fashion-conscious（时常意识） in a business way. It becomes much, much easier____（65） you narrow your range of choices."
第 51 题

A. playing
B. fishing
C. shopping
D. going

下列哪一组性能属于钢筋的力学性能？（）
Ⅰ．拉伸性能 Ⅱ．塑性性能 Ⅲ．冲击韧性
Ⅳ．冷弯性能 V．焊接性能

特别法的特别体现在其效力限于（）。

人本原理体现了以人为本的指导思想，包括三个原则，下列不包括在人本原理中的原则是（）。 A．激励原则 B．动力原则 C．能级原则 D．安全第一原则