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【简答题】
选词填空(必须选下列词,因为机器阅卷,个别词要用2次以上,个别词不需要用到):日期、耕层、 深度、 铵态氮、 有效钾、有效磷、晒干、阴干、 榔头、 木棍 (1)土壤采样深度一般为 0 ~ 20cm 。 各采样点的取土(2)及采样量应均匀一致。 标签要注明采样地点、(3)、采样日期、作物、编号及采样人等。 在风干过程中,有些成分如低价铁、(4)、 硝态氮 、酶活性等会起很大的变化,这些成分的分析一般用新鲜样品,我们需过筛后冷冻保存。 研碎土样时,只能用(5)滚压,不能用(6)锤打,因为矿物晶粒破坏后,会暴露出新的表面,增加有效养分的溶解。 为防避样品在干燥过程中发生改变,不能(7)或烘箱烘干,而是要(8)。
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参考答案:
举一反三
【单选题】进行剖宫产时,小动物不可以采用以下( )保定方法。
A.
柱栏站立保定
B.
右侧卧保定
C.
左侧卧保定
D.
仰卧保定
【单选题】His father will be back from London____a few days.
A.
since
B.
in
C.
on
D.
after
【单选题】His father will be back from Paris ___ a few days.
A.
since
B.
in
C.
after
D.
on
【单选题】进行剖 宫产 时,小动物不可以采用以下 ( ) 保定方法。
A.
柱栏站立保定
B.
右侧卧保定
C.
左侧卧保定
D.
侧卧保定
【单选题】Why does the professor say this?
A.
Reporters are eager to get famous.
B.
Reporters are controlled by the government.
C.
Reporters intend to attract readers' attention.
D.
Reporters want to show off.
【简答题】阅读理解。 Reporters' Tour to Sichuan Dear reporters, It has been over one year since the earthquake in Sichuan. People all over the world are caring about people in disaster areas. Do you want to know wha...
【单选题】Both his mother ________ his father will be there.
A.
nor
B.
and
C.
or
D.
to
【简答题】A.companions B.opponents C.sponsors D.reporters
【单选题】进行剖宫产时,小动物不可以采用以下( )保定方法。
A.
仰卧保定
B.
左侧卧保定
C.
柱栏站立保定
D.
右侧卧保定
【单选题】Which of the following is correct concerning reporters' opinions in news and feature articles?
A.
Most reporters do not have any opinions about the subjects they cover.
B.
As experts on the subjects they cover, reporters are free to offer their opinions as they see fit.
C.
Reporters' opinions have no place in news or feature articles.
D.
Reporters' opinions are valuable to the story and should be stated clearly.
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