background:url(2、png),url(1、jpg),url(3、png),url(4、jpg);},表示哪张图片处在最上层() A: 2、png B: 1、jpg C: 3、png D: 4、jpg

Given that an investor’s utility function is u=ln(w), he faces a gambling with an entry fee of 18 yuan: 10% probability to get 90 yuan, 90% probability to get 10 yuan, then this investor will: A: Accept this gambling and pay an entrance fee of 90 yuan B: Refused this gambling, but if the entry fee is less than 12.46 yuan, will accept this gambling C: Reject this gambling, no matter how much the entry fee is reduced D: Reject this gambling, but only accept the gambling if the entry fee drops to 5.54 yuan

background: url(2、png),url(1、jpg),url(3、png),url(4、jpg);},表示哪张图片处在最上层（）。

The word “tuition” in Para. 1 most probably means ______. A: fee for teaching B: books for classes C: living expenses D: laboratory fee

鲜蛋应在（）条件下储藏。 A: 1～5℃ B: 相对湿度85％～90％ C: 4～10℃ D: 相对湿度80％～90％ E: 常温

鲜蛋应在______条件下储藏。 A: 1～5℃ B: 4～10℃ C: 相对湿度85%～90% D: 相对湿度80%～90% E: 10～15℃

IPv6地址 "2016:AFFE:0000:0FEE:0000:0000:000E:FE00" 的最简形式是？ A: 2016:AFFE::FEE::E:FE00 B: 2016:AFFE:0:FEE::E:FE00. C: 2016:AFFE::FEE:0:0:E:FE00 D: 2016:AFFE:0:FEE::E:FE

There is a referral fee besides a per-item fee fee for individual sellers to pay.( )

c__f____ n. 咖啡 A: a,ee B: a,fee C: o, fee D: o, ee

鲜蛋应在（ ）条件下储藏。 A: 相对湿度80%～90% B: 1～5℃ C: 相对湿度87%～97% D: 4～10℃ E: 10～15℃