吹脱捕集气相色谱法测定水中挥发性卤代烃时，用（）作检测器。

做一个有盖的圆柱形铁皮水桶，底面的直径是4分米，高5分米，至少需要多少铁皮？这个水桶能装多少千克的水？（1立方分米的水重1千克）

为实现“十二五”节能减排目标，某地方政府强制“拉闸限电”，导致很多企业陷入有订单无供电的窘境，甚至连居民用电也在限制范围。下列观点对该政府行为的评价错误的是

①“饮鸩止渴，掩耳盗铃”之举，背离了重点论

②“公平竞争，一视同仁”之举，符合一切从实际出发

③“平时不烧香，临时抱佛脚”之举，违背了实事求是原则

④“量体裁衣，对症下药”之举，体现了具体问题具体分析

A．①③

B．②③

C．①④

D．②④

女性，出生后3天出现呼吸困难。查体：舟状腹，左胸腔内闻及肠鸣音，气管右移。胸片示左侧胸腔内多个透光区。

若行手术，决定预后的主要因素是（）

A.疝孔大小

B.疝内容物是否发生绞窄

C.患儿体重

D.肺发育情况

E.是否合并其他畸形

女性，29岁，心前区疼痛，低热，活动后气促3天入院。体查：体温38℃，血压100／75mmHg，心率100次／分，律齐。心音稍低钝，心尖区可闻双期心包摩擦音，X线见心影呈烧瓶状，心缘搏动减弱，ECG见除aVR外，广泛ST段抬高，弓背向下，血常规白细胞、血红蛋白均正常。两周前曾有上呼吸道感染史，入院初步诊断为急性非特异性心包炎。

对于该例，最佳抽取心包液的体位与位置是（）

A.平卧位、心尖区第5肋相对浊音界内2cm

B.半坐卧位，背靠床板，心尖区第5肋相对浊音界内2cm处

C.平卧位，从剑突与肋弓所形成的角内，穿刺针与胸壁成30度向上，稍向左进入心包的下部与后部

D.半坐卧位，L3、4肋间胸骨旁垂直进针

E.前俯位，心尖区第5肋相对浊音界内2cm处

Beyond question, Clinton was supposed to close up, stay out of sight, and avoid second- guessing his wife’s boss. After his ego blustered into oncoming traffic during Hillary’s heated primary race (1) Obama, the nation suffered from yet another turn of Clinton fatigue.

(2) this week Bill Clinton showed an instinct for robust, inclusive leadership that the (3) White House occupant could make good use of right for the time being. With President Obama struggling to (4) the political damage from the Gulf oil spill, Clinton not only can’t help himself—he’s worth being listened.

The conventional-wisdom (5) on President Obama’s early reaction to the spill was (6) he didn’t emote enough. He didn’t feel the (7) of all those people in the crisis whose livelihood would be destroyed, whose clean waters and wildlife would be (8) in black gunk.

Clinton considers this is an unfair (9) but offers a different—and more pointed— lesson to his young successor. "I think we ought to (10) in the same boat for a while... Let’s just (11) the problem, and then we can hold everybody responsible and emote or not emote, " Clinton conversed (12) CNN Anchor Wolf Blitzer.

Obama’s first (13) after the oil spill was to "feel the blame" rather than "feel the pain, " which are pretty sarcastic words as it were. No one intends to let British Petroleum (BP) management (14) the hook—for dangerously cutting corners, and for a (15) safety record. However, the President’s (16) focus on scolding BP consumed (17) White House energy while the oil gushed.

Great leaders don’t rush to criticise; Instead they instinctively (18) solutions. Rudy Giuliani, who didn’t stop to blame (19) intelligence for letting it happen, stood out from New York mayor with a girlfriend problem to 9/11 hero when he took control of a crisis and instilled confidence that a ravaged city could (20) beyond a terrorist attack.

7（）

A.pressure

B.pain

C.shock

D.fear