漏电保护装置主要用于( )。A.防止人身触电事故 B.防止供电中断 C.减少线路损

题型:多项选择题

问题:

漏电保护装置主要用于( )。

A.防止人身触电事故

B.防止供电中断

C.减少线路损耗

D.防止漏电火灾事故

E.防止人员接近带电体

考点:安全工程师安全生产技术安全生产技术
题型:多项选择题

槽式反应器的倾倒过程是由()控制的。

A、DCS系统

B、人工手动

C、MORMN系统

D、WINDOWS系统

题型:多项选择题

患者,男,76岁。患有慢性阻塞性肺疾病20年,因肺部感染住院,经治疗后,病情稳定,准备出院。出院后将进行长期家庭氧疗。

不符合长期家庭氧疗指征的是()。

A.PaO254mmHg

B.PaCO254mmHg

C.SaO292%

D.有肺动脉高压

E.有心力衰竭水肿

题型:多项选择题

People in the United States honor their parents with two special days:Mother’s Day, on the second Sunday in May, and Father’s Day, on the third Sunday in June. These days are set aside to show love and respect for parents. They raise their children and educate them to be responsible citizens. They give love and care. These two days make us think about the changing roles of mothers and fathers. More mothers now work outside the home. More fathers must help with child care.

These two special days are celebrated in many different ways. On Mother’s Day people wear carnations. A red one symbolizes a living mother. A white one shows that the mother is dead. Many people attend religious services to honor parents. It is also a day when people whose parents are dead visit the cemetery(墓地).On these days families get together at home, as well as in restaurants. They often have outdoor barbecues for Father’s Day. These are days of fun and good feelings and memories.

Another tradition is to give cards and gifts. Children make them in school. Many people make their own presents. These are valued more than the ones bought in stores. It is not the value of the gift that is important, but it is “the thought that counts”. Greeting card stores, florists, candy makers, bakeries, telephone companies, and other stores do a lot of business during these holidays.

小题1:Which of the following is NOT a reason for children to show love and respect for parents?

A.Parents bring up children.

B.Parents give love and care to children.

C.Parents educate children to be good persons.

D.Parents pass away before children grow up.小题2:Which do you think is right about “carnation”?

A.It has only two kinds of colors.

B.It refers to the special clothes people wear on Mother’s Day or Father’s Day.

C.It’s a kind of flower showing love and best wishes.

D.People can wear carnations only on the second Sunday in May.小题3:What do you know from the passage?

A.Mother’s Day and Father’s Day are both in May.

B.Fewer women worked outside the home in the past.

C.Not all the children respect their parents

D.Fathers are not as important as mothers at home.小题4:On Mother’s Day and Father’s Day, _______.

A.people usually have family parties

B.everyone goes to visit the cemetery

C.children always go to parents’ home

D.hand-made cards are the most valuable gifts

题型:多项选择题

子宫肌瘤红色样变常见于()

A.肌瘤扭转时

B.性功能活跃时

C.妊娠期

D.分娩期

E.月经期经量增多时

题型:多项选择题

平均利润率的形成是

A.部门之间竞争的结果
B.通过资本的转移实现的
C.通过追求超额利润实现的
D.不同生产部门的利润率趋于平均化的结果

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