下列气体中,无色无味的是( ) A.N2 B.Cl2 C.SO2 D.NH3

题型:选择题

问题:

下列气体中,无色无味的是(  )

A.N2

B.Cl2

C.SO2

D.NH3

考点:氮气
题型:选择题

血清脂蛋白中TG的含量是HDL最低而VLDL最高。()

题型:选择题

嗜铬细胞瘤的影像学表现不包括()

A.超声表现为肾上腺区较大的类圆形肿块,边缘回声强而光滑

B.CT示肾上腺区类圆形肿块,实性肿瘤密度均匀

C.MRI示肿瘤在T1WI呈近似肌肉样信号

D.MRI示肿瘤在T2WI呈明显低信号

E.123I-MIBG显像病灶呈异常放射性浓聚

题型:选择题

用心阅读下面这首歌词:

真的爱你

beyond

词:小美

曲:黄家驹

无法可修饰的一对手是你多么温馨的目光

带出温暖永远在背后教我坚毅望着前路

总是哆嗦始终关注叮嘱我跌倒不应放弃

不懂珍惜太内疚没法解释怎可报尽亲恩

沉醉于音阶她不赞赏爱意宽大是无限

母亲的爱却永远未退让请准我说声真的爱你

决心冲开心中挣扎仍记起温馨的一对手

亲恩终可报答始终给我照顾未变样

春风化雨暖透我的心理想今天终于等到

一生眷顾无言地送赠分享光辉盼做到

(1)这首歌使你体验到什么样的感情?

_______________________________________________________________________________

(2)你会以何种方式向生育和培养自己的父母表达孝敬之心和感恩之情?

_______________________________________________________________________________

(3)尝试创作一首诗歌或者一篇散文,或者一首歌词,表达你对父母的爱。(字数150字左右)

_______________________________________________________________________________

题型:选择题

血钙增高见于()

A.骨肿瘤

B.尿毒症

C.维生素D缺乏病

D.佝偻病

E.甲状旁腺功能减退

题型:选择题

The GUARANTEE ON THIS WATER HEATER IS IN EFFECT ONLY WHEN THE HEATER IS INSTALLED AND OPERATED IN ACCORDANCE WITH THESE INSTRUCTIONS. READ THESE INSTRUCTIONS THOROUGHLY BEFORE STARTING.

LOCATION:

  Select a location accessible to water lines and power supply. Do not locate the heater where water lines could be subjected to(受…影响) freezing temperatures. It is recommended that the heater be located near the center of greatest hot water usage to prevent heat loss through the pipes.

ELECTRICAL CONNECTIONS:

  Before any electrical connections are made, be sure that the heater is full of water and that the valve(阀门) in the cold water supply line is open.

OPERATION

When the switch is closed, the operation of this electric water heater is automatic. The thermostats are preset to the "HOT" setting to provide a water temperature of approximately 120oF to reduce the risk of being burnt.

MAITENACE

Shut off the electric power whenever the water supply is turned off.

Shut off the electric power, water supply and drain the heater completely to prevent freezing whenever the building is left unoccupied during the cold weather months.

SERVICE

The trip–free devices on this heater will cut off all power if temperature of water is above 190F. If there is no hot water after a reasonable period of time, check the main fuse(保险丝) box. In the event that the fuses have not blown, call a serviceman.

72.The location of the water heater shall ___________.

A. be close to water lines and power supply

B. be subjected to low temperature

C. be in the centre of the house

D. have a longer distance to hot water usage.

73.Before any connection of power , make sure that one thing you have to do is _____.

A. to have the heater in the water     B. to open the cold water inlet valve.

C. to shut off the thermostats         D. to replace wiring diagram

74.When you are not using the heater in winter months, it is better for you to________.

A. have the tank full of clear water    B. drain the heater

C. to leave it untouched             D. prevent it from losing heat

75. What will happen to the heater when the temperature of water is above 190F?

A. it will cause damage         B. It will break off automatically.

C. It will produce cold water.    D. It will blow the fuse.

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