由于成釉细胞未能使形成的基质完全矿化的是（） A.釉质形成不全 B.釉质矿化不全 C

Five teenagers from Sarasota, Florida, are making music from garbage. The Garbage-Men band’s instruments are made from old things. The guitars are boxes. The horn (喇叭) is made from pipes . The keyboard is formed from old bottles.

The band started about two years ago. Jack, who was in eighth grade at the time, decided to make a homemade guitar. After some hard work, he ended up building it from a cereal box, a big ruler and some little sticks. After Jack showed his guitar to his friend Ollie, Ollie had the idea to make a band using other homemade instruments as a way to suggest people recycle old things. “We want to show people there is more to recycling than throwing things away in the rubbish box,” Jack, 16, told TFK. “You can actually recycle old things.”

Ollie, 15, plays the drums made from rubbish cans. Evan, 14, plays the guitar; Harrison, 15, plays the horns and the violin; and Austin, 16, plays the keyboard. They make up the band The Garbage-Men and play at local parties around. They wand to help people get interested in recycling old things. “Music is a really good way to get a good message across to people because it’s really easy for people to understand,” Jack says. Their instruments may be garbage, but their message isn’t.

小题1:What are the Garbage-Men band’s instruments made from?

A. Big boxes.         

B. Little sticks.            

C. Old things.

小题2:Which of the followings is NOT true?

A. Evan is the youngest in his band.     

B. Jack came out of the idea to make a band first.

C. There are five members in the Garbage-Men band.

小题3:Ollie’s drums are made of           .

A.                     B.                       C.

小题4:What do the five teenagers suggest people do?

A. Making instruments.    

B. Listen to music.         

C. Reuse garbage.

小题5:The best title of the passage is           .

A. Five music Fans        

B. Reduce, Reuse, Replay    

C. A Strange Band

据地方志记载，民国时期某城市“旧式婚姻居十之七八，新式者不过十之二三”。对此理解错误的是[ ]

A、旧式婚礼因为简便节约更为流行

B、城市尚且如此守旧，更不要说乡村

C、婚姻习俗的新旧变迁有一个过程

D、传统的婚姻观念仍为多数人所坚持

用于测量外廓尺寸的卡钳是( )。

A．紧轴式卡钳

B．弹簧式卡钳

C．内卡钳

D．外卡钳

( )是指将货物积载于船舶露天甲板承运，并在提单上注明“装于舱面”字样的提单。

A．包裹提单

B．舱面货提单

C．并提单

D．分提单

在（）前必须向顾客说明刮痧后的注意事项。

A、清洁刮痧部位

B、观察顾客的痧象

C、协助顾客穿戴好衣服

D、顾客离开刮痧室