下列有关免疫的叙述中，不正确的是 A．特异性免疫一般只能对特定的病原体或异物起作

双代号时标网络计划中，波形线表示工作的( )。

A．总时差

B．相干时差

C．工作时间

D．自由时差

商业是指专门从事商品交换活动的营利性事业。古往今来，商业在社会经济中占有重要地位。在古代史上唐、宋商业都有了很大的发展。对比唐代长安城，北宋汴京在商业发展上有哪些不同（   ）

①代都城商业活动打破了坊市限制，形成了街市

②取消了营业时间限制，出现了夜市

③出现了专门性的市场

④政府重视，设立了专门的地方进行商业贸易

A．①②③

B．②③④

C．①②④

D．①③④

下列关于城市居住区综合技术经济指标的公式中，错误的是（）。

A．住宅建筑套密度（毛）=住宅建筑总套数/住宅总建筑面积（套/hm²） 

B．中高层住宅比例=中高层住宅总建筑面积/住宅总建筑面积 

C．人口毛密度=规划人口数量/居住区用地（人/hm²） 

D．住宅建筑面积毛密度=住宅建筑面积/居住区用地（万m2/hm²）

I shouldn’t let it bother me. It really doesn’t matter anyway. But it does bother me ! All those people are preparing to (21) a new century, a new millennium (千年) as well. And it just isn’t (22) !
Most of us schedule our lives by the Gregorian (23) . Our years are measured from the (24) of Christ. The first year of the first century is 1, or 1 A.D. The last year of that century is the year 100. Simple Yes! A century is 100 (25) long. A millennium is 1,000 years long, which is (26) ten centuries.
Since the last year of the first century is the year 100, the first year of the (27) century is 101. Follow that pattern, century by century and you’ll get my (28) . The year 2000 is the last year of the twentieth century. After all, (29) thousand means twenty hundreds. Twenty hundred years means twenty centuries. The year 2000 is the (30) , the final, the one that’s still here, year of the twentieth century!!!!
I know, I’m getting too (31) . But it isn’t fair, While most people will really be enjoying this coming (32) celebration, those of us in the know will be yawning. Everyone else will be (33) for the new millennium and we’ll be saying, "It’s not until next year."
I don’t agree with the (34) , "Ignorance is bliss." But in this case, perhaps it’s (35) .

A．hungry

B．handsome

C．inaccurate

D．excited

010年5月30日至6月1日国务院 * * 温 * * 会见日本天皇，同首相鸠山由纪夫会谈，接受NHK电视台专访。双方将签署涉及食品安全等领域的合作文件。据此回答下列各题。

中日关系是当今国际社会有重要影响的国际关系之一。在国际关系中，最主要的是（）的关系。

A.国家与联合国之间

B.国家与国际组织之间

C.国际组织之间

D.国家之间