This passage tells us a humorous but ironic story.（)

The plane was late and detectives were（) at the airport all morning. They were expecting

a valuable parcel of diamonds() South Africa. A few hours earlier, someone had() the police that thieves would try to steal the diamonds. ()the plane arrived, some of the detectives were waiting inside the main building() others were waiting on the airfield. Two men took the parcel() the plane and carried it() the Customs House. While two detectives were() guard at the door, two others opened the parcel.() their surprise, the precious parcel was full ()stones and sand!

46、A、waited

B、wait

C、waiting

D、waits

47、A、over

B、in

C、across

D、from

48、A、tell

B、tells

C、told

D、telling

49、A、When

B、What

C、However

D、Since

50、A、that

B、when

C、while

D、which

51、A、down

B、on

C、in

D、off

52、A、off

B、away

C、from

D、into

53、A、keeps

B、kept

C、keep

D、keeping

54、A、Without

B、On

C、To

D、With

55、A、in

B、off

C、of

D、with

According to this passage, the function of a ‘filtering device’ in American universities is to remove（).

A.people who are not intelligent

B.people who think independently

C.people who are not hard working

D.people who internalize social norms

A．G、C、T、U

B．G、A、C、T

C．A、G、C、U

D．G、A、T、U

E．T、C、A、U

RNA分子中所含的碱基是E．

破伤风抗毒素过敏试验0．1ml含破伤风抗毒素()

A．5 U

B．15 U

C．50 U

D．150 U

E．1 500 U

治疗佝偻病激期维生寨D肌注法剂量是

A.20万U～30万U一次

B.10万U～20万U一次

C.30万U～40万U一次

D.40万U～50万U一次

E.50万U一次

预防小儿佝偻病，应口服维生素D剂量为每日()

A．100 U

B．200 U

C．300 U

D．400 U

E．900 U

证明:若f^（n+1)（x)在U（a)连续,a+h∈U（a),有

治疗佝偻病激期维生素D肌注法剂量是

A.20万U～30万U一次

B.10万U～20万U一次

C.30万U～40万U一次

D.40万U～50万U一次

E.50万U～次

设f(u),g(u)任意次可微,且g(u)＞0.

治疗佝偻病激期维生素D肌注法剂量是

A、20万U～30万U一次

B、10万U～20万U一次

C、30万U～40万U一次

D、40万U～50万U一次

E、50万U一次