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【单选题】
下列对金属及其制品的防护措施中，不正确的是（ ）A.
在入海口的钢铁闸门上装一定数量的铜块可防止闸门被腐蚀
B.
通过特殊工艺，增加铝制品表面的氧化膜
C.
对于易生锈的铁制品要定期刷防护漆
D.
把Cr、Ni等金属加入到普通钢里制成不锈钢
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举一反三
【单选题】According to the passage, rattlesnakes ______.
A.
play no role in controlling the population of mice and rats
B.
play a more important role than owls and hawks in reducing the number of mice and rats
C.
play a certain role in limiting the population of mice and rats
D.
play a less important role than owls and hawks in reducing the population of mice and rats
【单选题】What is the best way to share resources with other hospitals; for example, if one hospital is particularly good at dealing with influenza, how can this be shared? A. train doctors for other hospitals
A.
train doctors for other hospitals
B.
make partnerships with hospitals in other areas
C.
send doctors out to help other hospitals
D.
partner with other hospitals in influenza treatment
【单选题】In which part of the play is it Lily will play a role?A．whereB．whichC．thatD．who
A.
In which part of the play is it____Lily will play a role? A．where
B.
which
C.
that
D.
who
【简答题】关系运算中的选择运算是A)从关系中找出满足给定条件的元组的操作B)从关系中选择若干个属性组成新的关系的操作C)从关系中选择满足给定条件的属性的操作D)A和B都对
【简答题】______play a major role in the development of cancer.
【简答题】角色扮演法(role play)
【单选题】肺部叩诊时板指的规范性手法为:
A.
板指与心缘平行
B.
板指紧贴胸壁并与肋间隙、肋骨平行
C.
肩胛间区叩诊仍应保持板指与肋间隙平行
D.
板指与肋骨垂直
E.
板指与肋间隙垂直
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