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玉米是我市重要的粮食作物之一，玉米幼苗有的是绿色的正常苗，有的是叶片发白的。由于缺乏叶绿素而不能进行光合作用，会过早死亡。请分析回答下列问题： （1）玉米被称为“黄金作物”，富含淀粉、脂肪、胡萝卜等营养物质，这些营养物质储存于玉米种子的___________中。在玉米种子形成的过程中，必须经历_________和_________两个重要生理过程。 （2）玉米幼苗能产生叶绿素与不产生叶绿素在遗传学上称为________________。 （3）玉米的是不利变异，引起这种变异的原因是____________________。 （4）玉米能产生叶绿素是由于它拥有显性基因B，而是隐性基因b则令玉米丧失产生叶绿素的能力。则的基因组成是__________，请在下图圆圈中画出其体细胞内基因与染色体的关系。 （5）科研人员将两株玉米杂交后，再收集种子种植。在935粒成功萌芽的种子中，有705粒发育成绿色幼苗，余下的幼苗为。请写出这些绿色幼苗的基因组成__________。
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【单选题】What does Steve Marriott say about staff contacting managers?
A.
Managers sometimes fail to respond promptly.
B.
Managers don't want to be disturbed in their work.
C.
Staff may be uncertain about when it is appropriate to do so.
【单选题】Who should meet with the speaker?
A.
Managers who need extra help.
B.
Managers who want to volunteer.
C.
Managers interested in a promotion.
D.
Managers who are willing to be transferred.
【单选题】The American shops are currently run by
A.
American managers in America.
B.
British managers in America.
C.
British managers in Britain.
【单选题】Female Managers' Interactive Leadership When women do become managers, do they bring a different style. and different skills to the job? Are they better, or worse, managers than men? Are women more hi...
A.
confronted
B.
commanded
C.
confined
D.
committed
【单选题】143 In small companies, project managers and line managers are:
A.
Never the same person
B.
Always the same person
C.
Sometimes the same person
D.
Always in disagreement with each other
E.
Forced to act as their own sponsors
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