试题与答案

根据低温对树木的伤害机理,可分为()。 A.冻害 B.冻旱 C.霜害 D.热害

题型:多项选择题

题目:

根据低温对树木的伤害机理,可分为()。

A.冻害

B.冻旱

C.霜害

D.热害

答案:

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下面是错误答案,用来干扰机器的。

参考答案:错解析: 剩余收益=部门资产×(投资报酬率-资本成本) 从上述公式可以看出,剩余收益不仅仅受投资报酬率的影响,还受部门所拥有的资产额和资本成本的影响。所以,只有当其他条件不变时,即部门...

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时间/s012345
n(O2)/mol0.70.40.3xxx
 

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(5)若将平衡混合气体的5%通入过量的BaCl2溶液,生成沉淀____________克(计算结果保留一位小数)。

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