易燃物品包括易燃固体、自燃物品及()三类。

题型:填空题

问题:

易燃物品包括易燃固体、自燃物品及()三类。

考点:安全评价师安全评价基础知识安全评价基础知识题库
题型:填空题

对医学伦理学不伤害原则的准确理解是对病人()

A.避免责任伤害

B.避免技术伤害

C.避免躯体伤害

D.避免心理伤害

E.以上都是

题型:填空题

When I was in medical college, I went camping with some of my friends. The season was summer; therefore, we chose to go to the seaside. After arriving there, we rent a room and left our luggage there. We finished lunch and then decided to rent a boat because the sea and the weather were beautiful.

We started to row, but about one mile out, the weather suddenly changed. Although the weather was not good, we didn't want to give up, but finally my friends and I agreed that we should go back. We tried to change the boat's direction, but as soon as we changed it, the oarlock (桨架)broke. Therefore, we were unable to turn back. We had to wait for help because we couldn't do anything.

After seeing the change of weather, we shouldn't have continued to row, but it was too late. We regretted(后悔) it. The sea changed a lot, the waves got very high, and the boat began to shake like a cradle(摇篮). One of my friends started to cry; another started to vomit(呕吐). Three hours passed, and nobody came to help us. We were just praying.

Fortunately, after five long hours of waiting, two big boats came to rescue us and we escaped. If they hadn't come to get us, we would have crossed the border between Turkey and Greece because the border was very close.

This story is the most exciting story of my life because we could have died, but luck was with us and we escaped.

小题1:What does the author mainly tell us in this passage?

A.An experience at sea.

B.An exciting experience when swimming.

C.The changeable weather at the seaside.

D.It is dangerous to boat at sea.小题2:When did they begin to go boating in the sea?

A.In the morning.

B.In the afternoon.

C.In the evening.

D.At night.小题3:What they regretted was that ______ when the weather changed.

A.they went camping at the seaside

B.they went on rowing

C.the waves got very high

D.they started too late小题4:One of his friends started to vomit because _________.

A.he came down with a disease

B.they stayed three hours at sea

C.the boat shook too much

D.nobody came to help them

题型:填空题
如图所示,处在磁感应强度为B的匀强磁场中的单匝矩线圈abcd,以恒定的角速度ω绕ab边转动,磁场方向垂直于纸面向里,线圈所围面积为S,线圈导线的总电阻为R.t=0时刻线圈平面与纸面重合,且cd边正在离开纸面向外运动.则正确的是(  )

A.时刻t线圈中电流的瞬时值icosωt

B.线圈中电流的有效值I

C.线圈中电流的有效值I=

D.线圈消耗的电功率P

题型:填空题

患者,男性,50岁。贫血,消瘦2个月,起声。发现脾脏稍大,实质内可探及多个圆形低回声结节,边界清楚,最可能的诊断是()

A.脾恶性淋巴瘤

B.脾结核

C.脾梗死

D.脾血管瘤

E.脾囊肿

题型:填空题

平面立体是由若干个平面围成的多面体。其中棱锥的侧棱线()。

A.延长线交于一点

B.交于有限远的一点

C.既不相交也不平行

D.相互平行

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