采用固氧脱硅较采用气氧脱硅可增加对铁水包的侵蚀。

消化性溃疡发生急性穿孔时，腹部检查时最有诊断价值的体征是下列哪一种（）

A.腹部膨胀且腹式呼吸消失

B.腹部膨胀伴移动性浊音阳性

C.上腹部局限性腹肌紧张、压痛、反跳痛

D.肝浊界上界消失

E.全腹肌紧张、压痛、反跳痛

下列除哪项外，均是大承气汤主治证可能见到的临床表现（）

A．腹痛便秘

B．小便频数

C．潮热谵语

D．手足溅然汗出

E．下利清水

中风先兆的舌态是( )

A．舌短

B．舌萎

C．弄舌

D．舌强

内部渠道聘请的教师，（）

A.责任心可能不强

B.具有丰富的培训经验

C.对企业情况了解，培训具有针对性

D.费用较高

Exercising to music pumps up brain power

If music makes you smarter, and exercise helps brain function, can exercising to music really boost brainpower Some researchers said it can. Volunteers who listened to Vivaldi’s "Four Seasons" while working out on a treadmill did much better on a test of (1) ability than when they exercised without music, a team (2) Ohio State University found.
"Evidence suggests that exercise improves the (3) performance of people with coronary artery (4) ," said psychologist Charles Emery, who led the study.
"And listening to music is (5) to enhance brainpower. We wanted to put the two results together," Emery (6) in a statement.
Writing in the latest issue of the journal Heart & Lung, Emery and (7) said they studied 33 men and women taking (8) in a cardiac rehabilitation program after having bypass (9) , angioplasty or other procedures to treat clogged arteries.
The (10) said they felt better emotionally and mentally after working out (11) or without the music. But their improvement on the (12) fluency test doubled after listening to music on the treadmills.
"Exercise seems to (13) positive changes in the nervous system, and these changes may have a (14) effect on cognitive ability," Emery said.
"Listening to music may (15) cognitive function through different pathways in the brain. The combination of music (16) exercise may stimulate and increase cognitive arousal (17) helping to organize cognitive output."
Emery said he now wanted to (18) people using music of their own choice. "We used the ’Four Seasons’ because of its (19) tempo and positive effects on medical patients in previous (20) ," Emery said. "But given the range of music preferences among patients, it’s especially important to evaluate the influence of other types of music on cognitive outcomes.\