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【简答题】
农业上常用的有种方法如下： a．甲品种×乙品种→F1→F1自交→F2个人工选择→自交→F3→人工选择→自交……→性状稳定的新品种 b．甲品种×乙品种→Fl→F1花粉离体培养得到许多小苗→秋水仙素处理→若干植株→F1人工选择→性状稳定的新品种 c．正常幼苗→秋水仙素处理→人工选择→性状稳定的新品种 d．种子搭载人造卫星到太空→返回地面种植→性状稳定的新品种a方法属于常规育种，一般从F2代开始选种，这是因为（）。选中的个体还需要经过若干代的自交、鉴别，直到不发生分离为止，这是因为新品种一般要是（）。
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【单选题】–Do you know what Mike does all day? –I know he spends at least as much time watching TV as he _____ his lessons.
A.
is doing
B.
does
C.
spends in
D.
does doing
【单选题】听力原文：M: I was sorry to hear Jack' s being fired. I know he was ill a lot and that he usually went to work late. W: Oh, it wasn' t that. Jack made a big error in this month' s accounting and the boss w...
A.
Because he is always sick.
B.
Because he usually went to work late.
C.
Because he was angry with the boss.
D.
Because he made a mistake in his work.
【单选题】--- Do you know what Tom does all day ? ---- I know he spends at least as much time watching TV as he ____________his lessons.
A.
is doing
B.
does
C.
spends to do
D.
does doing
【单选题】项目监理机构与建设单位的沟通与协调的内容不正确的是()。
A.
加强与建设单位领导及驻场代表的联系
B.
掌握建设单位的建设意图和对监理机构的工作要求
C.
设计建设单位与施工单位之间的有关合同的变更，监理机构通过总监同意后实施。
D.
坚持原则和立场，当建设单位不听取正确的监理意见时，不应采取强硬和对抗行为，总监应通过个别交谈、向上一层级领导汇报等方式解决。
【单选题】— Do you know what Tom does all day? — I know he spends at least as much time watching TV as he _____ his lessons. [ ]
A.
is doing
B.
does
C.
spends in
D.
does doing
【简答题】什么是汽车草图的区域线。
【简答题】I know he hates (interrupt) ______.
【单选题】He is my father and I know he will forgive me for _______ I have done.
A.
whatever
B.
no matter what
C.
no matter how
D.
whichever
【单选题】从前,沧州城南有一座临河寺庙,庙前有两尊面对流水的石兽,据说是“镇水”用的。一年暴雨成灾,大庙山门倒塌,将那两尊石兽撞入河中。庙僧一时无计可施,待到10年后 募金重修山门,才感到那对石兽之不可或缺,于是派人下河寻找。按照他的想法,河水东流,石兽理应顺流东下,谁知一直向下游找了十里地,也不见其踪影。这时,一位在庙中讲学的先 生提出其见解:石兽不是木头做的,而是由大石头制成,它们不会被流水冲走,石重沙...
A.
系统思维
B.
创新思维
C.
底线思维
D.
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