危险废物通常具有()。A.急剧毒性 B.易燃性 C.反应性 D.腐蚀性 E.浸出毒性

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问题:

危险废物通常具有()。

A.急剧毒性

B.易燃性

C.反应性

D.腐蚀性

E.浸出毒性

F.疾病传染性

考点:环境科学技术及资源科学技术固体废物管理规划固体废物管理规划题库
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37岁男性,机器绞伤致前臂中段完全离断4小时。试述急救及治疗原则。

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“Can’t hold a candle to” is a popular expression.When there wasn’t electricity, someone would have a servant light his way by holding a candle.The expression meant that the person who cannot hold a candle to you is not fit even to be your servant.Now,it means such a person cannot compare or compete.

Another expression is“hold your tongue.”It means to be still and not talk.“Hold your tongue”is not something you would tell a friend.But a parent or teacher might use the expression to quiet a noisy child.

“Hold out”is an expression one hears often in sports reports and labor news.It means to refuse to play or work.Professional football and baseball players“hold out” if their team refuses to pay them what they think they are worth.

The expression“hold up” has several different meanings.One is a robbery.A man with a gun may say,“This is a hold up.Give me your money.”Another meaning is to delay.A driver who was held up by heavy traffic might be late for work.Another meaning is for a story to be considered true after an investigation.A story can hold up if it is proved true.

“Hold on”is another expression,which means wait or stop.As you leave for school,your brother may say,“Hold on,you forgot your book.” It is used to ask a telephone caller to wait and not hang up his telephone.

Our final expression is“hold the line.”That means to keep a problem or situation from getting worse—to hold steady.For example,the president may say he will“hold the line on taxes.”He means there will be no increase in taxes.

小题1:The author introduces the expressions mainly by _____________.

A.giving examples

B.making comparisons

C.raising questions

D.quoting famous remarks小题2:The expression“can’t hold a candle to”call be used when ____________.

A.some footballers refuse to play a game

B.someone else is wanted on the phone

C.someone is not qualified for a position

D.someone was delayed by heavy traffic小题3:The tune ofthe phrase“hold your tongue”is probably a little ___________.

A.amusing

B.polite

C.unfriendly

D.offensive小题4:If some teachers“hold out”,they probably __________.

A.change their artitude

B.refuse to work

C.make a compromise

D.show their devotion小题5:Which of the following sentences can convey positive meanings?

A.I was late as I was held up by a hold up.

B.Hold on!You have to pay the bill,sir.

C.You can’t even hold a candle to Michael.

D.I promise to hold the line on house prices.

题型:多项选择题

在夹心ELISA测抗原时,不能用BAS的层次是 ()

A.将抗体固相化

B.用生物素化二抗取代酶标二抗

C.用生物素化抗体取代酶标抗体

D.抗原与固相抗体的结合

E.用ABC复合物取代酶标抗体

题型:多项选择题

启动初期为何要严格控制升压速度?

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(2007,40)根据《税收征收管理法》的规定,纳税人偷税的,由税务机关追缴其不缴或者少缴的税款、滞纳金,并处罚款,其罚款额为不缴或者少缴税款的( )。

A.50%以上2倍以下

B.50%以上3倍以下

C.50%以上5倍以下

D.50%以上6倍以下

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