皮肤中的纤维性蛋白包括()A．角蛋白 B．胶原蛋白 C．核蛋白 D．弹性蛋白

房产产权出典的，由（)缴纳房产税。

A.经营管理单位 

B.集体企业 

C.出典人 

D.承典人

关于CR系统的构成，错误的是

A．射线发生装置

B．影像读取装置

C．控制台

D．后处理工作站

E．存储装置

用切割钻分根时，需在患牙冠部磨出沟槽，沟槽深度达到何处为宜（）

A.冠1/2处

B.冠2/3处

C.冠3/4处

D.根分叉处

E.牙槽骨

温度越高，干燥的速度就快，木材的干燥质量越好。

Air France SA said Monday that its second-quarter net profit fell 35 percent to €57 million ($57.4 million), but sales were steady and operating profit surged.Earnings before interest and tax, a measure of operating income, gained 86 percent to €141 million as fuel costs fell and cargo traffic rose. Air France has been hurt less than rivals such as British Airways PLC and Lufthansa AG by the slowdown on North Atlantic routes following the war on Iraq in 2003 because it has fewer flights in that market.Net income fell as the airline paid deferred taxes that came due. Sales rose 0.9 percent to €3.2 billion. The carrier lost about €80 million in revenue because of a four-day strike by pilots in September. An accord was reached tying future pay increases to inflation. The carrier said that first-half fuel costs fell 15 percent to €680 million. Cargo traffic rose 11 percent in the second quarter, while passenger traffic rose 1.1 percent. The airline’’s shares gained 87 cents, or 7.7 percent, to close at €12.11.Separately, Air France and Alitalia SpA agreed to buy 2 percent stakes in each other as Europe’’s second- and sixth-largest airlines deepen their partnership.

€ in "€57 million" and "€141 million" probably stands for________.

A．English

B．the euro

C．European

D．European Currency Unit