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【单选题】
X、Y、Z、W是分别位于第2、3周期的元素，原子序数依次递增．X与Z位于同一主族，Y元素的单质既能与盐酸反应也能与NaOH溶液反应，Z原子的最外层电子数是次外层电子数的一半，Y、Z、W原子的最外层电子数之和为14．下列说法正确的是（　　）
A.
原子半径由小到大的顺序：X＜Y＜Z＜W
B.
最简单气态氢化物的热稳定性：X＜Z＜W
C.
X、Y、Z、W的最高价氧化物中所含化学键的类型相同
D.
含Y的盐溶液不一定显酸性
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The lease transfers the pwnership of the asset to the lessee by the end of the lease term.
B.
The lease term is for approximately half of the economic life of the asset.
C.
The lease assets are of a specialized nature such that only the lessee can use them without major modifications being made .
D.
At the inception of the lease, the present value of the minimum lease payment is 60% of what the leased asset would cost to purchase.
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【简答题】端粒酶由 和 组成。
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【判断题】不遵守规章制度的工作现场,我们经常会听到“下不为例”,“这样就行了吧”,“我太忙啦”,这些话对吗?
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【多选题】森林更新方式有( )?
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【单选题】Which of the following situations would normally lead to a lease being classified as a finance lease?
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The lessee has the option to purchase the asset at a price which makes it reasonably certain that this option will be exercised
B.
At the inception of the lease, the present value of the minimum lease payments does not amount to substantially all of the fair value of the asset
C.
The lease does not transfer ownership of the leased asset to the lessee by the end of the lease term
D.
The lease term is not for the major part of the asset's economic life
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【简答题】端粒酶由 和 组成。
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