下列不属于水粉色技法特点的是（）A、表现力强 B、色彩饱和后不透明 C、有较强的覆盖

There are two kinds of people in the world. Those of the first kind are born idlers (游手好闲者), taking interest in nothing. It seems what they live for is to pass time idly. They simply don’t know why they have to do so, nor will they bother to ask. The other kind are those who take things seriously and never wish to idle away their life. But only a part of the second group are eager enough to make success. All the others fail to make enough effort to make their dreams come true. 

Why do things so happen to them? What are the reasons?

I later find out that some people are determined. They are “igniters” that catch fire of their own, giving light and heat. But that’s not the case with others. They may be fuels but not igniters. As pieces of wood or coal, they need a match or a lighter to make them burn so that their energy can be released to give off light and heat.

The majority of people need some igniter to light them. Thus igniter becomes a must for those people to succeed. Unless a suitable igniter comes their way, they will always remain idle like cold unused firewood or coal.

Fortunately, such an igniter is not difficult to meet. One may find it in an instructive book, a film story, a few words of a close friend, some advice of a good teacher, a pleasant journey, or an unexpected love.

Any of these, coming at the right time, can serve as an igniter to start one’s enthusiasm for learning or for a better career, to turn him from a passive state of waiting to an active state of pursuing, to lend him strength to go ahead bravely. In that case, what he has prepared for years will be quickly turned into fruitful reality.

Such an igniter may turn up of itself, but most likely we have to find it ourselves. Never let a chance slide away, for it is the key to your success.

小题1: According to the text, “________” are the persons that can light many people so that their energy can be released to give off light and heat.

A．idlers

B．igniters

C．fuels

D．serious people小题2: According to the writer, what do most people definitely need to succeed? 

A．Storing a lot of energy.

B．Great interest in everything.

C．An igniter coming at the right time.

D．Wonderful dreams about a bright future.小题3: The writer writes the article to _________.

A．describe two kinds of people

B．encourage people to find chances to succeed

C．praise those who work hard

D．make fun of idlers

目前临床上常用的治疗用核素多为（）。

A.γ射线发射体

B.α射线发射体

C.正电子发射体

D.中子发射体

E.β射线发射体

炉前快速分析室现有定氢仪型号是（）。

A.CS600

B.EMGW621

C.EMGW620

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