婴幼儿咽鼓管较_______、_______、________、________，故

麻子仁丸和济川煎均具有的功用是

A．滋阴
B．养血
C．行气
D．泻热
E．润肠

下列适合于描述某种事物在时间序列上的变化趋势的统计图为（）

A.散点图

B.线形图

C.条形图

D.圆形图

It was a fixing sight: there, in the Capitol itself, a U.S. Senator often mocked for his halting, inarticulate speaking, reached deep into his Midwestern roots and spoke eloquently, even poetically, about who he was and what he believed, stunning politicians and journalists alike.

I refer, of course, to Senator Jefferson Smith. In Frank Capra’s classic Mr. Smith Goes to Washington, Jimmy Stewart plays this simple, idealistic small-town American, mocked and scorned by the big-moneyed, oh-so-sophisticated power elite--only to triumph over a corrupt Establishment with his rock-solid goodness.

At root, it is this role that soon-to-be-ex-Senator Bob Dole most aspires to play: the self effacing, quietly powerful small-town man from Main Street who outwits the cosmopolitan, slick-talking snob from the fleshpots. And why not There is, after all, no more enduring American icon.

How enduring Before Americans had a Constitution, Thomas Jefferson was arguing that the new nation’s future would depend on a base of agrarian yeomen free from the vices inherent in big cities. In 1840 one of the classic, image-driven presidential campaigns featured William Henry Harrison as the embodiment of rural virtues, the candidate of the log cabin and hard cider, defeating the incumbent Martin Van Buren, who was accused of dandified dress and manners.

There is, of course, a huge disconnect between this professed love of the simple, unspoiled life and the way Americans actually live. As a people, Americans have spent the better part of the 20th century deserting the farms and the small towns for the cities and the suburbs; and are torn between vacationing in Disney World and Las Vegas.

U.S. politicians too haven’t exactly shunned the temptations of the cosmopolitan life. The town of Russell, Kansas, often seems to be Dole’s running mate, but the candidate spends his leisure time in a luxury condominium in Bal Harbor, Florida. Bill Clinton still believes in a place called Hope, but the spiffy, celebrity-dense resorts of Martha’s Vineyard and Jackson Hole are where he kicks back. Ronald Reagan embodied the faith-and-family pieties of the front porch and Main Street, but he fled Iowa for a career and a life in Hollywood.

Still, the hunger for the way Americans believe they are supposed to live is p, and the distrust of the intellectual hustler with his airs and his high-flown language runs deep. It makes sense for the Dole campaign to make this a contest between Dole as the laconic, quiet man whose words can be trusted and Bill Clinton as the traveling salesman with a line of smooth patter but a suitcase full of damaged goods. It makes sense for Dole to make his campaign song Thank God I’m a Country Boy--even if he is humming it 9,200 m up in a corporate jet on his way to a Florida condo.

We can learn from the text that Americans have a history of（）

A. undervaluing those of humble origins

B. paying tribute to native intellectuals

C. giving impetus to personal pursuits

D. worshipping their heroes and heroines

关于食物中毒的特点，不准确的是（）

A.有共同的饮食史

B.症状相似

C.发病多呈暴发

D.人与人之间不传染

E.停止食用"有毒食物"后发病有一滞后期

人工制取沼气的基本条件有哪些？