如何制作水旱盆景？

下列除哪项外均为仅能由冷热刺激引起疼痛的疾病 （）

A.深龋

B.牙本质敏感症

C.坏死性牙髓炎

D.三叉神经痛

E.可复性牙髓炎

套利定价理论认为，同一个风险因素所要求的风险收益率(即超过纯粹利率的部分)对于所有不同的资产来说都是相同的。 ( )

下列哪一个不是碳素钢丝形成的工艺流程（）

A.淬火

B.碱洗

C.酸洗

D.拉拔

能够引起低血钾的利尿剂为（）

A.速尿

B.双氢克尿噻

C.螺内酯

D.氨苯喋啶

The following questions present a sentence, part of which or all of which is underlined. Beneath the sentence, you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others.

These questions test correctness and effectiveness of expression. In choosing your answer, follow the requirements of standard written English; that is, pay attention to grammar, choice of words, and sentence construction. Choose the answer that produces the most effective sentence; this answer should be clear and exact, without awkwardness, ambiguity, redundancy, or grammatical error.

The stock market collapse of 1929 had far-reaching consequences for the national economy, causing a nationwide collapse in home values, putting millions out of work, and by erasing the investment savings of one-fifth of the population.（）

A. and by erasing

B. and erasing

C. and having erased

D. and erased

E. by erasing