按规定，两用物项和技术进出口许可证可跨年度使用，有效期为一年，在有效期内可以使用到次

Michael and Dick are good friends, but they like to play jokes on each other. One holiday, they decided to go to London together. They went to the station and bought their tickets.

Michael got on the train first. He dropped his ticket on the platform when he got into the carriage. Dick, who was close behind, saw the ticket fall and quickly picked it up. He put it in his pocket, but didn’t tell Michael. After they had been in the train for a while, they heard the conductor coming down the corridor, shouting, “Tickets, please!” Michael looked for his ticket and of course couldn’t find it.

“Oh dear, I can’t find my ticket, Dick,” Michael said.

“Look for it carefully, Michael; it must be somewhere.” said Dick.

“No, I can’t find it anywhere. What shall I do?” said Michael.

“Perhaps you’d better hide under the seat; then the conductor won’t know you are here.” So Michael hid under the seat. At this time, the conductor came in. “Tickets, please,” he said. Dick handed him tow tickets and said, “This is mine. The other is my friend’s. But he prefers to stay under the seat.”

小题1:Michael and Dick would spend their holiday in________.

A．train

B．London

C．Pairs

D．Rome小题2: Where did Michael lose his ticket?

A．On the platform

B．In the carriage

C．In the corridor

D．Under the seat小题3:What did Dick do after he picked up Michael’s ticket?

A．He gave it to his friend.

B．gave it to the inspector.

C．He put it in his bag.

D．He put it in his pocket.小题4:Michael hid under the seat when the conductor came to check the ticket because _______.

A．he didn’t buy the ticket

B．he liked to hide under the seat

C．he couldn’t find his ticket

D．he wanted to lay with the inspector小题5:From the last sentence we can know that when Michael heard Dick’s words, he would feel___________.

A．angry

B．happy

C．sad

D．worry

在切削速度较（），切削厚度较（）的情况下，切削塑性金属以及加工脆性金属时，都存在着后刀面磨损。

A.高、小

B.低、小

C.高、大

D.低、大

口腔念珠菌病病损区涂片直接镜检可见（）

A.菌丝和孢子

B.梭状杆菌和螺旋体

C.病毒水疱和包涵体

D.大量细菌及白细胞

E.分枝杆菌

中国古代海队建设是从（）开始的。

A.宋朝

B.元朝

C.明朝

D.清朝

目前拓展训练中使用的头盔主要有轻质头盔、硬质头盔两种。