头晕、乏力、晕厥常见于（） A.室早 B.房室传导阻滞 C.预激综合征 D.房早 E

在竖直平面内，一根光滑金属杆弯成如图所示形状，相应的曲线方程为y= 2.5cos(kx+)(m)，式中k=1 m^-1。将一质量为1 kg的光滑小环套在该金属杆上，在P点给小环以平行于杆、大小为10 m/s的初速，让小环沿杆向+x方向运动，取g=10 m/s²，关于小环的运动，下列说法正确的是

A．金属杆对小环不做功

B．小环沿x轴方向的分运动为匀速运动

C．小环到达金属杆的最高点时的速度为

D．小环到达点时的速度为

1998～2002年全国电话用户情况图(单位；万户)

全国移动电话用户增长速度最快的是（）

A．1999年

B．2000年

C．2001年

D．2002年

How many of us would temp for three years while we waited for the perfect job Not many of us, perhaps. But Wentworth Miller, the "Prison Break" star, said he chose to wait even longer time (1) he found the right job.
"Actually I think it might have been three or four years until I was lucky enough to get guest (2) on TV shows," said Miller, 34, who rose to international stardom (3) to "Prison Break" in 2006. That kind of patience and p will was portrayed in "Prison Break". Miller (4) engineering wizard Michael Scofield, who tries everything to break out of a Chicago (5) with his brother. Miller said he was fond of his character, (6) he said "exists in shades of grey".
Miller comes from a (7) of teachers. He said he didn’t seem fated for a career in the arts, (8) his passion for acting. After (9) from Princeton with an English degree, he moved (10) his parents’ request to Los Angeles to look for a stable life. He started (11) in a little company that made television movies. This (12) simply faxing, filing, walking the boss’ dog and going to the store for the boss’ lunch. Every weekend during the summer, Miller (13) go to the office (14) he didn’t have air-conditioning. "I would hang (15) in the conference room and set up camp and rob the company kitchen," recalled Miller.
(16) , Miller realized he still had questions about his choice. He decided to quit. But the boss said he was making a mistake and offered him a well-paid assistant position. "I eventually (17) that if I did the corporate job, it would be great if I was successful, but I would always wonder about the (18) . If I did the acting and was successful, I would never wonder (19) that job," he explained. He quit and temped (20) many people in the entertainment industry.
Now, he’s a hot star and has people coming up to him at film festivals saying, "Weren’t you the one who (21) to stand by the copy machine "
"That was tough, but I’m glad I have that perspective. Because now I’m at a point (22) big shots laugh at all my jokes and I think, You know, I got coffee for people like you for six years’. So I know what’s (23) , because I’ve seen the other side." But what if, when he was offered the corporate job, there had been more money "It was never about the (24) There’s a kind of excitement that comes along with acting. I can’t find it anywhere else. Even if I had to go back to temping, even if this is not the beginning of an amazing career, I would not (25) making that jum
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根据支付结算制度的规定，下列存款账户中，可以用于办理现金支取的是( )。

A．证券交易结算资金专用存款账户

B．一般存款账户

C．信托基金专用存款账户

D．临时存款账户