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问题 填空题

统计表中已经选修了课程的学生人数的SQL语句为
SELECT 【14】 FROM选课

答案

参考答案：COUNT(DISTINCT学号)

解析： 利用COUNT短语来求人数，DISTINCT短语表示不允许出现重复记录。

单项选择题

某产妇，29岁，G1P0足月妊娠。自然分娩后第3天，体温38℃，下腹部胀痛，排尿困难，有尿急、尿痛、尿烧灼感，中段尿培养细菌数≥105/ml。

此病人最可能的诊断是( )。

A．肾盂肾炎

B．膀胱炎

C．急性 * * 炎

D．急性子宫内膜炎

E．急性外阴炎
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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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