灵活配置型基金对股票和债券的配置比例会依据市场状况进行调节。（）

牛黄、熊胆都具有的功效是（）。

A.开窍

B.化痰

C.利咽

D.明目

E.止痉

拉削时，在一次生程中就能切除全部加工余量、（）达到预期加工质量

A、不可以

B、基本

C、可以

夏季有（）小时日照，即可杀死空气中的大部分致病微生物。

A.1

B.2

C.3

D.4

男，68岁，2周来反复胸痛，发作与劳累及情绪有关，休息可以缓解。3小时前出现持续性疼痛，进行性加剧，并气促，不能平卧，血压110/70mmHg，心率120次份，律齐，心尖部可闻及3/6级收缩期杂音，双肺散在哮鸣音及湿性啰音。根据上述临床表现，该病人的诊断最可能是（）

A．风心病二尖瓣关闭不全

B．扩张型心肌病

C．支气管哮喘

D．支气管肺炎

E．急性心肌梗死并发左心衰竭

To produce the upheaval (激变) in the United States that changed and modernized the domain of higher education from the mid-1860s to the mid-1880s, three primary causes interacted. The (1) of a half-dozen leaders in education provided the personal force that was needed. (2) , an outcry (呐喊) for a fresher, more practical, and more advanced kind of instruction (3) among the alumni (校友) and friends of nearly all of the old colleges and grew into a movement that overrode (压倒) all (4) opposition. The aggressive "Young Yale" movement appeared, demanding partial alumni control, a more (5) spirit, and a broader course of study. The graduates of Harvard College simultaneously (6) to relieve the college’s poverty and demand new (7) . Education was pushing toward higher standards in the East by (8) off church leadership everywhere, and in the West by finding a wider range of studies and a new (9) of public duty.

The old-style classical education received its most crushing (10) in the citadel (城堡) of Harvard College, (11) Dr. Charles Eliot, a young captain of thirty-five, son of a former treasurer of Harvard, led the (12) forces. Five revolutionary advances were made during the first years of Dr. Eliot’s (13) They were the elevation and amplification of entrance requirements, the enlargement of the (14) and the development of the (15) system, the recognition of graduate study in the liberal arts, the raising of professional training in law, medicine, and engineering to a postgraduate level, and the fostering (培养) of greater (16) in student life. Standard of admission were sharply advanced in 1872—1877. (17) the appointment of a clean (院长) to take charge of student affairs, and a wise handling of (18) , the undergraduates were led to regard themselves more as young gentlemen and (19) as young animals. One new course of study after another was (20) —science, music, the history of the fine arts, advanced Spanish, political economy, physics and international law.

20（）

A. opened up

B. set down

C. brought up

D. laid down