写出下列实验所需主要仪器的名称(只写一种) (1)取用少许液体时应用______

题型:填空题

问题:

写出下列实验所需主要仪器的名称(只写一种)

(1)取用少许液体时应用______;

(2)溶解较多量物质时需用______;

(3)用作收集或贮存少量气体时需用______;

(4)少量物质反应时需用______;

(5)搅拌时,应用______.

考点:常用仪器的名称和选用
题型:填空题

阅读理解。

     Three surfers rushed to save a man's life after he was left drifting on a notorious stretch of water. 

     The men stayed with Greg Popple for 30 minutes and had to be rescued themselves by helicopter as the

drama unfolded.

     The 45-year-old had floated out on a body board near Hutchwns Point at 8:30 am.He found himself in

trouble about half-a-mile from the shore and dangerously close to rocks. Surfers Graig Evans, 31, Robert Miles,

19, and Owain Daviees, 23, were risking their own safety to keep him floating for 30 minutes. Luckily a passer-

by noticed what was going on and raised the alarm. Porthcawl Coastguard, Porthcaw Lifeboat and an RAF

helicopter all took part in the rescue.

     "The man who got into trouble was a body boarder-there was a big tide where he was," said Joe Missen.

"Three other surfers spotted he was in difficulty and he was going down. They kept him afloat because he was

in a state of shock and out of energy. If Mr. Popple was closer to the rocks, it could have been a lot worse, but

they managed to keep him from harm". 

     Mr. Missen's mum Alison, also part of the rescue team, said, "That part of the water is notorious for taking

people out to nowhere".

     The three men had clocked off a night shift at Ford Motor Company shortly before the incident.

     "I headed straight down to the beach for a surf, when I saw him flailing (挥动). We just swam straight out

to him and kept him calm while the help came". 

     The four men were taken to the life boat house to recover, without injuries.

1. What would be the best title for the text? [ ]

A. Three Men to Be Praised

B. Notorious Place for Surfers

C. Surfers Rescue Man Caught in Tide

D. Greg Popple-a Lucky Dog

2. The helicopter came up at the request of _____. [ ]

A. Greg Popple

B. Craig Evans

C. Robert Miles

D. a passer-by

3. About the incident, we know that _____.[ ]

A. Mr. Popple moved with difficulty for loss of energy

B. The three men were badly injured

C. Mr. Popple'mum was also in the rescue team

D. Mr. Davies was going to work that morning

4. According to the text, what was the most important thing to do for the three men? [ ]

A. Keeping him farther away from the rocks.

B. Keeping Mr Popple swimming in the sea.

C. Asking him to have a good rest.

D. Keeping him floating everywhere.

5. What may the style of this passage be? [ ]

A. A story.

B. A news report.

C. A poster.

D. An advertisement.

题型:填空题

北京站为我国最大的客运站之一,站名为______ * * 题写。P103

题型:填空题

柴油机一个工作循环包括四个行程,即进气、压缩、作功和排气,每一个工作循环,柴油机曲轴要旋转()度。

A.360

B.180

C.540

D.720

题型:填空题

有实验证明人肩关节固定1周所致的挛缩需52天才能治愈,固定3周,治愈大约需要的天数是

A.60天
B.120天
C.156天
D.300天
E.365天

题型:填空题

通常情况下,牵头公司是投入比例最大的公司,并要收取履约金额的( )作为牵头费。

A.0.5%~1%

B.1%~2%

C.2%~5%

D.0.5~5%

更多题库