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【单选题】
表示单位质量标记物的放射强度的指标A.
放射化学纯度
B.
免疫活性
C.
比放射性
D.
交叉反应率
E.
亲和常数
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举一反三
【单选题】( ) 3. _______ the road , you will find a hospital between the post office and the supermarket .
A.
In the end of
B.
In the end
C.
At the end
D.
At the end of
【单选题】Which of the following best expresses the essential information in the highlighted sentence? Incorrect answer choices change the meaning in important ways or leave out essential information.
A.
To avoid misunderstanding, it is very important to understand the foreigners' languages.
B.
Listening comprehension is the most important among the four skills: listening, speaking, reading and writing.
C.
In order to get full understanding, we should speak to them as often as possible.
D.
What we speak to them is as important as what they speak to us.
【单选题】盈亏平衡点是指项目的盈利与亏损的平衡点，下列对盈亏平衡点的描述正确的是( )。
A.
盈亏平衡点越低，表明项目的抗风险能力越弱
B.
盈亏平衡点越高，表明项目对产出品数量变化的适应能力越强
C.
盈亏平衡点越高，表明项目的抗风险能力越强
D.
盈亏平衡点越低，表明项目对产出品数量变化的适应能力越强
【单选题】Hope to hear from you. The sentenc is similar in meaning with _____.
A.
We don’t agree.
B.
It’s true.
C.
I understand.
D.
Goodbye.
【单选题】盈亏平衡点是指项目的盈利与亏损的平衡点，以下对盈亏平衡点的描述正确的是( )。
A.
盈亏平衡点越低，表明项目对产出品数量变化的适应能力越弱
B.
盈亏平衡点越高，表明项目对产出品数量变化的适应能力越强
C.
盈亏平衡点越高，表明项目对产出品数量变化的适应能力越弱
D.
盈亏平衡点越低，表明项目对产出品数量变化的适应能力越强
【单选题】Independent Language learners rely on themselves___________
A.
to discover sentence patterns and grammatical rules
B.
to expand vocabulary
C.
to use the target language
D.
to encourage unsuccessful language learners to learn independently， actively and purposefully
E.
from clues
F.
to say strange things
【简答题】Supermarket designers are experts the business people buy.
【简答题】盈亏平衡点是指项目的盈利与亏损的平衡点，以下对盈亏平衡点的描述正确的是（ ）。
【单选题】'Stuff a dry handkerchief into the bottom of a glass.' The underlined word in this sentence means ______.
A.
press tightly
B.
believe to take
C.
dip
D.
put
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