一般来讲，黄金陈列线是（）cm的位置。A、140～180 B、85～140 C、50

The Frugal Gourmet Cooks American by Jeff SmithOur real American foods have come from our soil and have been used by many groups — those who already lived here and those who have come here to live. The Native Americans already had developed an interesting cuisine using the abundant foods that were so prevalent.The influence that the English had upon our national eating habits is easy to see. They were a tough lot, those English, and they ate in a tough manner. They wiped their mouths on the tablecloth, if there happened to be one, and they ate until you would expect them to burst. European travelers to this country in those days were most often shocked by American eating habits, which included too much fat and too much salt and too much liquor. Not much has changed! And, the Revolutionists refused to use the fork since it marked them as Europeans. The fork was not absolutely common on the American dinner table until about the time of the Civil War, the 1860s. Those English were a tough lot.Other immigrant groups added their own touches to the preparation of our New World food products. The groups that came still have a special sense of self-identity through their ancestral heritage, but they see themselves as Americans. This special self-identity through your ancestors who came from other lands was supposed to disappear in this country. The term melting pot was first used in reference to America in the late 1700s, so this belief that we would all become the same has been with us for a long time. Thank goodness it has never worked. The various immigrant groups continue to add flavor to the pot, all right, but you can pick out the individual flavors easily.The largest ancestry group in America is the English. There are more people in America who claim to have come from English blood than there are in England. But is their food English Thanks be to God, it is not! It is American. The second largest group is the Germans, then the Irish, the Afro-Americans, the French, the Italians, the Scottish, and the Polish. The Mexican and American Indian groups are all smaller than any of the above, though they were the original cooks in this country.

The author’s attitude towards American food is that

A．American food is better than foods from other countries.

B．American food is superior to European food.

C．European food had helped enrich the flavors and varieties of American food.

D．people from other countries could still identify from the American foods the foods that were unique to their countries.

暂冠位置应该做到（）

A.龈上

B.平齐龈缘

C.龈下

D.后牙为防止食物嵌塞，应该紧贴牙龈

E.与最终修复体位置一致

直线电动机与旋转电动机相比较有（）优点。

A.使传动机构得到简化，提高精度，减小了振动和噪声

B.响应快速

C.散热好，额定值高，电流密度可取很大，对启动限制小

D.装配灵活

下列弃船的警报信号，哪项是正确的（）

A.警铃或汽笛短声连放一分钟

B.警铃或汽笛七短声一长声连放一分钟

C.警铃或汽笛短声连放一分钟后继一长声

D.七短声一长声

患儿男，生后2天，出生体重为2400g。因吸入性肺炎入院，入院时患儿呼吸急促，口唇稍发绀。即置于辐射保暖床上抢救。

该患儿吸氧的流量应选择每分钟为（）

A.1L

B.2L

C.3L

D.4L

E.5L