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【简答题】
观察菜豆种子和玉米种子结构图，据图回答下列问题：（每空1.5分，共18分） （1）菜豆种子贮藏营养的结构是[ ] 。 ⑵图中[ ]和[ ]是胚根 ,[ ]和[ ]是胚芽，[ ]和[ ]是胚轴。 ⑶图中将来发育成植物体的芽的结构是 ，发育成连接茎和根的是 。 ⑷玉米种子的子叶有 片，和菜豆种子相比较玉米中还有 。
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皮皮学刷刷变学霸
举一反三
【单选题】Questions are based on the following passage. Despite a cooling of the economy， high technology companies are still crying out for skilled workers. The Information Technology Association of America pr...
A.
It decreases the costs of high technology companies.
B.
It emphasises the importance of unfilled jobs.
C.
It hinders the development of the US economy.
D.
It accelerates the collapse of the old education system.
【单选题】The economy will maintain its high growth levels and the government still has plenty of room to further tighten monetary policy.
A.
reclaim
B.
resent
C.
restrain
D.
reverse
【简答题】人员推销与大非人员推销相比，其优点表现在哪些方面？
【单选题】High interest rates are______our economy so that everyone in the company is afraid of being fired.
A.
expressing
B.
depressing
C.
impressing
D.
pressing
【单选题】设集全M={x|0≤x＜2}，集合N={x|x 2 -2x-3＜0），集合M∩N等于 [ ]
A.
{x|0≤x＜1}
B.
{x|0≤x＜2}
C.
{x|0≤x≤1}
D.
{x|0≤x≤2}
【简答题】A．Mutual distrust. B．High taxes. C．Rapid expanding of economy. D．Radicals.
【简答题】什么是免疫接种,如何制定免疫接种计划,并分析免疫接种失败的原因?
【简答题】A．Mutual distrust. B．Rapid expanding of economy. C．High taxes. D．Radicals.
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