H．enry's job was to examine cars which crossed the frontier to make sure that they were not smuggling anything into the country. Every morning，except at weekends，he (11) see a factory worker coming up the hill towards the frontier， (12) a bicycle with a big load of old straw on it. When the bicycle arrived the frontier，Henry used to stop the man and order him to take the straw off. Then he would examine the straw very carefully to see (13) he could find anything，after which he would look in all the man's pockets before he let him tie the straw up again. The man would then put it on his bicycle and go off down the hill with it. Although Henry was always (14) to find gold or jewelry or other valuable things hidden in the straw，he never found (15) ，even though he examined it very carefully. He was sure that the man was smuggling something，but he was not (16) 鱼to imagine what it could be.

Then one evening，after he had looked through the straw and emptied the factory worker's pockets (17) usual，he said to him，“Listen，I know that you are smuggling things (18) this frontier. Won't you tell me what it is that you're bringing into the country so successfully? I'm an old man，and today's my last day on the job. Tomorrow I'm going to (19) . I promise that I shall not tell anyone if you tell me what you've been smuggling. ”The factory worker did not say anything for (20) . Then he smiled，turned to Henry and said quietly：“Bicycles. ”

A． should

B． might

C． would

D． must

[单选题]In Henry's experiment，the galvanometer indicated a voltage when______.A． the coil was connected to a batteryB． the coil was disconnected to a batteryC． neither A nor BD． both A and B

[单选题]What is NOT TRUE about Henry's electromagnet?A． His magnet could. hold 2，300 pounds.B． His magnet was more dangerous.C． There were more turns of wire around the iron rod in his magnet.D． His magnet was an improved model.

[单选题]In Henry's experiment，he connected the wire to______.A． a galvanometerB． an iron barC． a batteryD． an electromagnet

[单选题]What was Peter's job?A．A radio announcer.B．A bank employee.C．A car mechanic.D．A movie actor.

[单选题]It's [tough] tolook for a job these days.A.differentB.digitalC.difficultD.d

[单选题]is a channel' s capacity which directly reflects the data transfer rate of the channel.(67)functions in a NetWare network which is used to define addressing schemes.(68)is a network layer device that suports multiple LAN interfaces and segments LANs

[单选题]It is a teacher's job to make sure that everyone of hisstudents _______ con

[单选题]Which country's way of communication made use of visible signs?A． FrenchB． RomanC． AfricanD． American

[单选题] (66) is a channel's capacity which directly reflects the data transfer rate of the channel. (67) functions in a NetWare network which is used to define addressing schemes. (68) is a network layer device that suports multiple LAN interfaces and segm

[单选题]In John Whitehead's opinion, which statement is true?A．Face recognition technology may interfere with people's privacy.B．Face recognition technology may enhance the country's constant surveillance.C．Face recognition technology can be used in the s