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问题 单项选择题 A1/A2型题

巨噬细胞在体内抗肿瘤作用的证据大多是间接的，下列说法错误的是（）

A.巨噬细胞含量愈多，肿瘤愈易转移

B.从肿瘤分离出来的巨噬细胞在体外对该肿瘤细胞有细胞毒性作用

C.肿瘤的局部引流淋巴液中有巨噬细胞增生反应，反应的强弱与预后的好坏相平衡

D.用SiO2毒害巨噬细胞，有利于肿瘤的生长和转移

E.检测巨噬细胞的功能对了解机体特异性和非特异性免疫状态有重要作用

答案

参考答案：A

选择题

在我国，_______是社会主义民主最为广泛而深刻的实践，同时也是发展社会主义民主的基础性工作。[ ]

A．实行村民自治和城市居民自治

B．健全民主制度，丰富民主形式

C．扩大公民有序的政治参与

D．人民直选人大代表

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填空题

President Bush arrived in Washington and forged ahead with an ambitious agenda- (1) tax cuts, vast changes in federal social programs, expansions of executive power and (2) broad remaking of energy and education policies.
Claiming a mandate by simply declaring (3) existence, his early successes dazzled his critics. With guru Karl Rove directing the (4) , Bush won a stunning series of political victories.
He muscled his agenda through (5) friendly Congress, and gained seats for his party in the 2002 midterm elections. (6) biggest triumph came in 2004, when he won a second term despite a (7) unpopular war.
The "permanent" Republican majority he and Rove envisioned even seemed attainable (8) Bush plunged himself into his most ambitious legislative effort yet: a partial privatization (9) Social Security.
But the president who boasted about "political capital" in the heady (10) after his re-election now faces the worst of political fates as he enters (11) final year in office: borderline irrelevance.
The president’s second term has (12) defined by legislative paralysis, marked by record-low approval ratings, presidential candidates who are (13) from his shadow, and a lingering war that’s sapping his remaining reservoirs of (14) .
As he enters his final year in office with the war continuing, Republican (15) for president bolting from his shadow, and his party back in the minority (16) Congress, he is politically weakened, an early entry into lame-duck status.
And the (17) Washington atmosphere he hoped to cure is just as nasty as it was (18) he came to office seven years ago.
"lie’s left our political institutions much (19) troubled than they were before," said Thomas E. Mann, a senior fellow at (20) Brookings Institution, a Washington-based think tank. "He didn’t create the ideological polarization, but he magnified it. \
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