男性,27岁。突起右下腹痛,短时间便觉全腹痛,半个月前曾有过"感冒",表现发热、头痛

题型:单项选择题 共用题干题

问题:

男性,27岁。突起右下腹痛,短时间便觉全腹痛,半个月前曾有过"感冒",表现发热、头痛、四肢酸痛、食欲不振,在当地医院门诊按"上感"服药治疗过。查体:全腹压痛及反跳痛,肠鸣音消失。

经上述检查后,发现气腹。对此病人可能的诊断是().

A.急性坏死性肠炎穿孔

B.伤寒肠穿孔

C.急性阑尾炎穿孔

D.阿米巴痢疾肠穿孔

E.胃十二指肠溃疡穿孔

考点:普通外科学(医学高级)肠疾病肠疾病题库
题型:单项选择题 共用题干题

E-waste is fast becoming a serious problem around the world. This report will examine this problem and provide some possible ways to solve it.

We live in a society that is producing and using electronics(电子产品) all the time. It is often cheaper to buy new products than to repair old ones. Also, through clever advertising, companies always encourage people to change their old TVs, mobile phones and computers for the latest models. E-waste is created when we throw away old ones. In the EU alone, about 8,700,000 tons of e-waste is produced each year. Sadly, just over 1,000,000 tons is recycled.

Burying(填埋) e-waste or burning it cause serious problems for the environment. Electronics have dangerous things in them. These things can then get into the ground or pollute the air when they are burnt.

In recent years, ____. However, their plans are not always managed properly. Sometimes electronics are just sent to poor countries such as Ghana. Here they are often burnt in public areas, which is very bad for people’s health. Setting up recycling centers is a good way to solve this problem. E-cycling centers could recycle the parts that can be reused and deal with the rest properly.

Another way is to make producers responsible(负责任) for their used products. This means that producers must take back old products which are no longer wanted. They should then make sure they are properly recycled or reused.

As for us, we should try to cut down on e-waste. Change electronics only when we have to. And don’t buy a product just to have the latest model.

E-waste is a serious problem in the modern world. Both producers and users must take actions and try to keep it to the smallest amount.

小题1:According to the passage, it is often _______ to buy new electronics than to repair old ones.

A.more expensive

B.more difficult

C.cheaper

D.worse小题2:In the passage the underlined word “they” refers to ______.

A.the old products

B.the producers

C.the users

D.the new products小题3:Which of the following is the best for the blank in Paragraph 4?

A.the e-waste problem has been solved

B.the e-waste problem continues growing

C.many countries have started recycling e-waste

D.people haven’t realized the e-waste problem yet小题4:Which sentence shows the writer’s opinion?

A.Burning e-waste causes problems for the environment.

B.E-waste problem is very serious and people should take actions.

C.Sometimes electronics are sent to poor countries such as Ghana.

D.In the EU alone, about 8,700,000 tons of e-waste is produced each year.

题型:单项选择题 共用题干题

霍乱()

A.发热、腹痛、腹泻、里急后重、脓血便

B.无发热、无腹痛、泻米泔水样大便

C.腹痛、五更泻、果酱状大便

D.发热、腹痛、水样便

E.发热、剧烈腹痛、洗肉水样便

题型:单项选择题 共用题干题

原子核Aβ衰变(一次)变成原子核B,原子核B再经α衰变(一次)变成原子核C,则下列说法中哪些说法是正确的?           

A.核A的中子数减核C的中子数等于2

B.核A的质子数减核C的质子数等于5

C.原子核为A的中性原子的电子数比原子核为B的中性原子中的电子数少1

D.核C的质子数比核A的质子数少1

题型:单项选择题 共用题干题

导体对电流的阻碍作用叫做电阻。

题型:单项选择题 共用题干题

某企业基本生产车间本月新投产甲产品500件,月末完工400件,假设月初在产品余额为0,期末在产品完工率为50%。本月甲产品生产费用为:直接材料186000元,直接人工72000元,制造费用90000元。甲产品生产所耗原材料系投入时一次性投入。月末,该企业完工产品与在产品之间的生产费用分配采用约当产量法,则本月完工甲产品的总成本为( )元。

A.292800
B.292444
C.327200
D.286582

更多题库