如果要把返回值为void的函数A声明为类B的友元函数，则应在类B的定义中加入的语句是

从亲代到生殖细胞再到子代，染色体数量的传递规律是（　　）

A．2N→2N→2N

B．N→N→2N

C．N→2N→2N

D．2N→N→2N

某企业转让旧厂房一座，下列表述中正确的是( )。

A．应按转让收入计算缴纳营业税

B．应按转让收入扣除清理费用后的余额计算缴纳营业税

C．应按转让收入计算缴纳增值税

D．应按转让收入扣除清理费用后的余额计算缴纳增值税

《医疗废物管理条例》所称医疗废物，是指医疗卫生机构在医疗、预防、保健及其他相关活动中产生的（）。

A.麻醉、精神性药品的废弃物

B.放射性、医疗用毒性物品的废弃物

C.具有直接或间接感染性、毒性以及其他危害性的废物

D.医院制剂配制中产生的中药材废渣

E.普通医疗生活用品废弃物

读下图，完成题。

小题1:在图中，两水域附近具有世界意义的自然资源是

A．铁矿资源

B．石油资源

C．渔业资源

D．淡水资源小题2:有关图中四条河流及其流域的说法中，正确的是

A．四条河流的航运都很发达

B．四条河流流经地区光热丰富、水源充足、农业发达

C．四条河流中，a、b是内流河，c、d是外流河

D．四条河流的中下游地区都存在土地荒漠化和次生盐碱化问题

Bill Gates receives honorary knighthood

Britain’s Queen Elizabeth stands with Microsoft chairman and philanthropist Bill Gates after presenting him with an honorary knighthood at Buckingham Palace, London, March 2, 2005.
Sir Bill Not quite. Proclaiming himself "humbled and delighted," Microsoft founder Bill Gates received an honorary knighthood Wednesday from Queen Elizabeth Ⅱ—an accolade that allows the recipient to use "KBE" after his (1) , but not to put "Sir" in front of it.
One of the world’s richest men, Gates, 49, was (2) honored for his charitable activities around the world and his contribution (3) enterprises in Britain.
Past recipients of the honorary knighthood (4) from Irish singer Bob Geldof to former U.S. President Ronald Reagan.
"This (5) is particularly poignant given the deep connections Microsoft enjoys (6) the United Kingdom," said Gates, whose company employs about 2000 people in (7) .
Gates’ royal honor—bestowed by the queen on the advice of the (8) —was announced in January 2004, but a "mutually convenient" date to (9) it had not been available until now.
British recipients of knighthoods are entitled to be (10) with a "Sir" before their names. The honor was long the (11) of senior soldiers, judges and other servants of the state, but recent years have seen the creation of Sir Paul McCartney, (12) Mick Jagger and Sir Elton John.
As an American, Gates is not entitled to use (13) before his name, but he can put the initials KBE—Knight Commander of the (14) Empire—after his name.
Gates joins a roster of American (15) that includes former presidents Reagan and George H.W. Bush, comedian (16) Hope, retired U.S. Army Gen. Tommy Franks and former Secretary of (17) Colin Powell.
Gates said he was proud of what he called (18) "special relationship" with Britain.
"The U.K. was the first country in (19) Microsoft set up a subsidiary outside the U.S., and our experience in the (20) has been significant in shaping our international growth," he said.
Microsoft’s British facilities include Research Cambridge, a laboratory established in 1997 in the university town that employs 80 scientists. In 2000, the Bill & Melinda Gates Foundation announced a donation of $210 million to Cambridge University to create a scholarship program for graduate students from outside Britain.