工作场地昏暗,无法看清被吊物时司机不能起吊操作。

题型:判断题

问题:

工作场地昏暗,无法看清被吊物时司机不能起吊操作。

考点:起重机操作证考试桥门式起重机司机桥门式起重机司机题库
题型:判断题

真空中有两个点电荷,相隔距离为r时的相互作用力为F,则:    

(1)保持两者间距不变,使一个点电荷的电荷量变为原来的4倍,则其相互作用力为__________;

(2)保持两个点电荷的电荷量不变,当相互作用力为4F时,其间距应为__________;

(3)保持一个点电荷的电荷量不变,另一个点电荷的电荷量变为原来的2倍,间距变为原来的2倍,则其相互作用力为_________;

(4)使一个点电荷的电荷量变为原来的4倍,两者间距变为原来的,当发现相互作用力变为16F时,则另一点电荷的电荷量为原来的__________。

题型:判断题
用方框中所给单词的适当形式填空,使短文通顺、正确、连贯(每个单词限用一次)。
friend  polite  through  which  travel  remind  whether  sad  balance  pour
Make time for friendships.
Nothing makes closeness fade away(褪色) more than never talking to or seeing each other. If
you cherish a person’s friendship, make time for him or her,   1  it’s just a phone call, e-mail or a weekly get-together.
Remember: a true friend doesn’t flee when changes happen. Nothing is   2  for new parents
than to find that their unmarried friends have left them because of the coming of baby. A good friend is one who stays true   3  it all in life – marriage, parenthood, new jobs, new homes, and so on.
Make sure you aren’t being a burden to a friend.
Friendships will lose if there isn’t a   4  between the give and the take. Be sensitive to how much your friend can and can’t offer you –and don’t overstep the mark.
Be a good listener.
It can be the hardest thing in the world to do – simply to listen as he or she   5  it all out or is seeking your advice or opinion. To be a better listener, follow this advice:
Keep eye contact. Offer nods and murmurs to show that you understand his or her point of view. Don’t finish your   6  sentences. While your friend keeps on talking, you should gently   7  yourself to focus.
Be in your friend’s corner if he or she’s not there to defend him or herself.
If you’re at a gathering at   8  someone says something bad about your friend, stop him or her   9 . Say, "Mary is my friend, and it makes me feel bad to hear you talk this way." Sooner or later, news of your loyalty (忠诚) will   10  back to your pal, and it will deepen your friendship.
题型:判断题

有“抢婚”习俗的民族是()。

A.纳西族

B.彝族

C.黎族

D.藏族

题型:判断题

依据WHO标准,可确诊为Crohn病的是()

A.区域性肠道病变,黏膜呈铺路石样改变

B.非连续性肠道病变伴纵行溃疡

C.全层性炎症性肠道疾病伴肿块及狭窄

D.节段性肠道病变,纵行溃疡

E.节段性肠道病变,肠壁全层性炎及非干酪性肉芽肿

题型:判断题

补肾固精类药物炮制常用的辅料是()

A.酒

B.醋

C.姜汁

D.盐水

E.甘草汁

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