选频直放站通道数量比施主小区载波数少时，会引起什么现象？（）A、无问题 B、引起掉话C

皮肌炎患者血清肌酶谱中，最具临床价值的是（）。

A.CK

B.AST

C.LDH

D.GOT

E.AKP

一成年男性，右肩部摔伤活动受限，来诊时见其以左手托右侧前臂，方肩畸形，将其右手搭在左侧肩部，其右肘不能靠近胸壁。首先应考虑的诊断是

A．肩关节脱位

B．肩锁关节脱位

C．锁骨骨折

D．肩关节周围炎

E．肩部骨折

阅读理解

     During the past few years,scientists the world over have suddenly found themselves productively

engaged in the task they once spent their lives avoiding-writing,any kind of writing,and particularly letter 

writing.Encouraged by electronic mail's surprisingly high speed,convenience and economy,people who

never before touched the stuff are regularly,skillfully,even cheerfully tapping out a great deal of

correspondence.

     Electronic networks,woven into the fabric of scientific communication these days are the route to

colleagues in distant countries to share data,bulletin boards and electronic journals.Anyone with personal

computer,a modem and the software to link computers over telephone lines can sign on.An estimated five million scientists have done so with more joining every day,most of them communicating through bundle of

interconnected domestic and foreign routes known collectively as the Internet,or net.

     E-mail is starting to edge out the fax,the telephone,over-night mail,and of course,land mail.It shrinks

time and distance between scientific collaborators,in part because it is conveniently asynchronous (writers

can type while their colleagues across time zones sleep;their message will be waiting).If it is not yet

speeding discoveries,it is certainly accelerating communication.

     Jeremy Bernstei,the physicist and science writer,once called E-mail the physicist's umbilical cord (生命线).Lately other people,too,have been discovering its connective virtues.Physicists are using it;college

students are using it;everybody is using it,and as a sign that it has come of age,the New Yorker has

celebrated its liberating presence with a cartoon-an appreciative dog seated at a keyboard,saying

happily,"On the Internet nobody knows you're a dog."

1.The reasons given below about the popularity of E-mail can be found in the passage except         .

A.direct and convenient

B.time-saving in delivery

C.money-saving

D.available around the clock

2.How is the Internet or net explained in the passage? 

A.Electronic routes used to fax or correspond overnight.

B.Electronic routes used to read home and international journals.

C.Electronic routes waiting for correspondence while one is sleeping.

D.Electronic routes connected among millions of users home and abroad.

3.Which statement is the closest in meaning to the underlined sentence in the third paragraph? 

A.It shrinks time for communication and accelerates discoveries.

B.Although it does not speed up correspondence,it helps make discoveries.

C.It quickens communication even if it does not accelerate discoveries.

D.The quick speed of correspondence may have ill effects on discoveries.

4.The writer mainly tells that         in the last paragraph.

A. E-mail is nowadays becoming a trend

B. E-mail can sometimes be unreliable

C. the presence of E-mail deserves a discussion

D. E-mail users often ignore its disadvantages 

某制造企业2010年度实现销售收入总额3000万元，实现利润总额为2000万元，该年度企业发生的具体支出和费用如下：
(1)支付企业管理费100万元，其中，业务招待费10万元。
(2)支付员工工资薪金80万元，其中，职工福利费、职工教育经费和工会经费共计15万元(该企业计税工资标准为60万元)。
(3)支付银行利息15万元。

下列选项中，表述正确的有( )。

A．该企业应纳的所得税税额为650万元

B．该企业应纳的所得税税额为510.73万元

C．该企业应纳税所得额为2042.9万元

D．该企业应纳税所得额为2600万元

蜜蜂堂蜂蜜为什么这么贵？