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【单选题】
从不同的角度,可以将观察法划分为不同的类型。根据观察者的角色不同,观察法可分为()和参与观察两大类。A.
结构式观察
B.
实验室观察
C.
实地观察
D.
为非参与观察
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【简答题】Find one synonym of "high-powered" and make a sentence.
【单选题】Neponia is a small planet in a distant galaxy visible only through high-powered radio telescopes positioned on satellites orbiting the Earth.
A.
The small planet Neponia is in a far-away part of the universe and can be seen only by astronomy equipment located in space.
B.
Only equipped with high-powered radio telescopes established on satellites in space can we see Neponia clearly, a tiny planet in a distant galaxy.
【单选题】Neponia is a small planet in a distant galaxy visible only through high powered radio telescopes positioned on satellites orbiting the Earth.
A.
As we know ， Neponia is a small planet in a distant galaxy which can be seen only through high powered radio telescopes which is installed on satellite .
B.
The small planet Neponia is in a far-away part of the universe and can be seen only by astronomy equipment located in space.
C.
Only equipped with a high powered radio telescope established on satellites in space can we see clearly Neponia, a tiny planet in a distant galaxy.
【单选题】High-powered money minus reserves equals
A.
reserves.
B.
currency in circulation.
C.
the monetary base.
D.
the nonborrowed base.
【单选题】Earning enough money to support his family is a high ________.
A.
priority
B.
superiority
C.
status
D.
stature
【简答题】狼蛛的猎食 法布尔 1 我在实验室的泥盆里 ,养了好几只狼蛛。从它们那里,我看到狼蛛猎食时的详细情形。这些做了我的俘虏的狼蛛的确很健壮。 它的身体藏在洞里 ,脑袋探出洞口,玻璃般的眼睛向四周张望,腿缩在一起,做着准备跳跃的姿势 ,它就这样在阳光下静静地守候着,一两个小时,不知不觉就过去了。 2 如果看到一只可作猎物的昆虫从旁边经过 ,它就会像箭一般地跳出来,狠狠地用它的毒牙咬猎物的头部,然后露出满...
【简答题】阅读下列的一段话 , 回答问题 . 关于物种起源的问题 , 如果一位博物学家 , 对于生物相互间的亲缘关系 5 它们的胚胎的关系、地理的分布以及在地质期内出现的程序等等事实 , 加以思考 , 那么 , 我们可以推想得到 , 生物的种 , 和变种一样 , 是由以前别的种演变而来 , 而不是分别创造出来的 . 这个结论 , 即使很有根据 , 但是如果不能说明地球上的无数生物 , 怎样经历变异 6 而达...
【简答题】As it was powered on, the machine began to work at high speed .
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