小宇家新安装了一台电热水器,电热水器的铭牌旁贴有右侧所示的三条警示语.请你应用学

题型:问答题

问题:

小宇家新安装了一台电热水器,电热水器的铭牌旁贴有右侧所示的三条警示语.请你应用学过的物理知识对这段警示语中的必要性任选一条给予合理的解释.

(1)严禁湿手拔插电源插头.

(2)必须确认电热水器贮水后,才能通电加热.

(3)在气温低于0℃的寒冷季节,欲长时间停用热水器,请先排空电热水器中的水.

考点:安全用电
题型:问答题

下列疾病与人体激素分泌无关的是

A.夜盲症

B.甲亢

C.糖尿病

D.巨人症

题型:问答题

I have a friend who had financial problems and needed my help occasionally.

He was in his final year in University while I was in my third year. He needed some money for school fees and other academic purposes, and he came to me. Being a student, ______,but I gave him what he needed on the agreement that he would pay back. I didn’t bother him after that. I never asked when he’d pay back.

Later on,after he finished school,he got into another period of deep financial stress and called me on the phone. He asked to borrow some more money,promising that he’d pay all of it back once he landed a job. Out of kindness,I still gave him the exact amount he needed,which was twice the amount I had given him initially. He was so grateful. It’s so hard to find someone willing to lend you that amount of money,even with interest.

Fast forward a few months later. One evening,I was feeling happy and love filled my heart. I felt like performing a special act of kindness. And then I thought,“Why not cancel my friend’s debt? Things are so difficult for him,you know? ”So I called him up and told him I had canceled his debt. He was shocked! He couldn’t believe it. He was so happy and later sent me a message of heart-felt gratitude.

Me too! And I felt grateful for his gratitude.

In life,it is the small but powerful actions of love that matter. When life is over,that’s what counts.

小题1:For what purpose did the author’s friend turn to him for help when they were in university?(no more than 10 words)

小题2:Fill in the blank in Paragraph 2 with proper words. (no more than 5 words)

小题3:According to Paragraph 4,what did the author decide to do?(no more than 10 words)

小题4:How did the author’s friend feel after he received the phone?(no more than 5 words)

小题5:What does the author intend to tell us?(no more than 10 words)

题型:问答题

乳腺纤维瘤()

A.病程较慢, * * 单个肿块,边界清楚,活动

B.病程短, * * 单个肿块,质硬,边界不清,同侧腋下淋巴结肿大

C. * * 内大小不等结节,质韧,边界不清,触痛

D. * * 内肿物,质软,边界清,挤压 * * 有血性溢液

E.病程短, * * 内肿块,表面充血,热,胀痛

题型:问答题

胸外心脏按压的正确部位是

A.胸骨下1/2

B.胸骨左侧第四肋骨间

C.胸骨上中2/3交接处

D.胸骨中下1/3交接处

E.胸骨左缘第四肋间腋中线上

题型:问答题

斗轮机液压系统电机不能转动或嗡嗡叫的原因有()。

A、电路故障;

B、电机损坏;

C、缺相;

D、没供220V电源。

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