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【单选题】
反应H2(g) + Br2(g)=2 HBr(g)的Kc＝1.86。若将3 mol H2，4 mol Br2和5 mol HBr放在10 L烧瓶中，则（ ）
A.
反应将更多的 HBr 方向进行
B.
反应向消耗 H 2 的方向进行
C.
反应已经达到平衡
D.
反应更多 Br 2 的方向进行
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【单选题】()就是指次数分布的非对称程度,以偏态系数来表示。
A.
偏度
B.
峰度
C.
全距
D.
方差
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【单选题】The muscles of a fossilized animal can sometimes be reconstructed because______.
A.
they were preserved with the rest of the animal
B.
they were lodged inside the animal's skull
C.
they were hardened parts of the animal's body
D.
they were attached to the animal's skeleton
查看完整题目与答案
【单选题】According to the third paragraph, which of the following is true?
A.
A fossilized animal's appearance is usually restored accurately.
B.
It is difficult to restore some fossilized animals because they had no external parts.
C.
The prehistoric elephants are hairless.
D.
An extinct animal does not definitely look like its living relatives.
查看完整题目与答案
【多选题】以下可以用来进行微生物接种的器具有( )。
A.
接种环
B.
接种铲
C.
移液管
D.
接种针
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【单选题】Newly-found fossilized tracks in Alaska proved that dinosaurs' migration between Asia and North America took place ______.
A.
much earlier than experts previously thought
B.
much later than experts previously thought
C.
after Asia became an independent continent
D.
sometime around 25 million years ago
查看完整题目与答案
【单选题】张护士,为手外伤患者换药后,使用化学消毒剂浸泡血管钳的注意事项中,下列错误的是
A.
使用前用3%生理盐水冲净，以免药液刺激组织
B.
严格掌握药物的有效时间和浓度
C.
浸泡前要打开器械的轴节
D.
物品应全部浸没在消毒液中
E.
消毒液容器要盖严
查看完整题目与答案
【简答题】vt. 赚得,获得,博得
查看完整题目与答案
【单选题】According to the text, the soft part of fossilized animals
A.
can always be accurately identified.
B.
have usually left some traces.
C.
can usually be reconstructed.
D.
have always vanished without any trace.
查看完整题目与答案
【单选题】The muscles of a fossilized animal can sometimes be reconstructed because
A.
they were preserved with the present relatives of the animal.
B.
they were lodged inside the animal’s skull.
C.
they were hardened parts of the animal’s body.
D.
they were attached to the animal’s skeleton.
查看完整题目与答案
【单选题】货品从进入分拣系统直至传送到指定的分配位置为止,都是依照指令靠自动装置来完成分拣作业的一种分拣方式是
A.
人工拣选法
B.
分类拣选法
C.
机械拣选法
D.
自动拣选法
查看完整题目与答案
相关题目：
【单选题】()就是指次数分布的非对称程度,以偏态系数来表示。
A.
偏度
B.
峰度
C.
全距
D.
方差
查看完整题目与答案
【单选题】The muscles of a fossilized animal can sometimes be reconstructed because______.
A.
they were preserved with the rest of the animal
B.
they were lodged inside the animal's skull
C.
they were hardened parts of the animal's body
D.
they were attached to the animal's skeleton
查看完整题目与答案
【单选题】According to the third paragraph, which of the following is true?
A.
A fossilized animal's appearance is usually restored accurately.
B.
It is difficult to restore some fossilized animals because they had no external parts.
C.
The prehistoric elephants are hairless.
D.
An extinct animal does not definitely look like its living relatives.
查看完整题目与答案
【多选题】以下可以用来进行微生物接种的器具有( )。
A.
接种环
B.
接种铲
C.
移液管
D.
接种针
查看完整题目与答案
【单选题】Newly-found fossilized tracks in Alaska proved that dinosaurs' migration between Asia and North America took place ______.
A.
much earlier than experts previously thought
B.
much later than experts previously thought
C.
after Asia became an independent continent
D.
sometime around 25 million years ago
查看完整题目与答案
【单选题】张护士,为手外伤患者换药后,使用化学消毒剂浸泡血管钳的注意事项中,下列错误的是
A.
使用前用3%生理盐水冲净，以免药液刺激组织
B.
严格掌握药物的有效时间和浓度
C.
浸泡前要打开器械的轴节
D.
物品应全部浸没在消毒液中
E.
消毒液容器要盖严
查看完整题目与答案
【简答题】vt. 赚得,获得,博得
查看完整题目与答案
【单选题】According to the text, the soft part of fossilized animals
A.
can always be accurately identified.
B.
have usually left some traces.
C.
can usually be reconstructed.
D.
have always vanished without any trace.
查看完整题目与答案
【单选题】The muscles of a fossilized animal can sometimes be reconstructed because
A.
they were preserved with the present relatives of the animal.
B.
they were lodged inside the animal’s skull.
C.
they were hardened parts of the animal’s body.
D.
they were attached to the animal’s skeleton.
查看完整题目与答案
【单选题】货品从进入分拣系统直至传送到指定的分配位置为止,都是依照指令靠自动装置来完成分拣作业的一种分拣方式是
A.
人工拣选法
B.
分类拣选法
C.
机械拣选法
D.
自动拣选法
查看完整题目与答案