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【单选题】
以下关于位置区的说法，正确的是（ ）A.
位置区就是一个行政区域
B.
位置区越小越好
C.
位置区越大越好
D.
位置区的划分不能太小也不能太大；
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举一反三
【单选题】Why does Alice look depressed?
A.
Because she has run out of her money.
B.
Because she is spending too much money and has difficulty in how to budget well.
C.
Because she is the only person who has budget problem.
D.
Because she is living alone.
【单选题】Why does Alice visit Laurent White?
A.
To give him some samples and catalogs.
B.
To express the desire to establish business relations.
C.
To follow up their quote.
【简答题】Why was Alice offended?
【单选题】Why does Alice come to Bill's office?
A.
To ask some questions.
B.
To collect the payment.
C.
To get the documents.
【简答题】2008年汶川大地震，给中国人民带来了巨大的灾难和损失，同时生态环境也遭到了严重破坏．请根据所学知识回答下列问题： （1）此次地震中许多遇难者的遗体无法辨认，需提取其细胞内的______（选填DNA或蛋白质）进行亲缘关系鉴定． （2）灾害后为了预防传染病的流行，消毒人员对灾区进行了大范围的消毒，该措施是为了（______） A、控制传染源 B、切断传播途径 C、保护易感人群 ...
【单选题】Why does Alice not want to work at home?
A.
Because her home is so crowded.
B.
Because she doesn't get dedicated phone lines at home.
C.
Because there are many distractions at home.
D.
Because she always thinks about work at home.
【简答题】摄像时如何保持单一主体的活力?
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