（）的基本观念是在一个或多个战略地点对全部货品进行预估，而将进一步库存部署延迟到收到

关于拔髓术操作不合要求的是（）

A.钻针方向与牙长轴平行

B.由较突出的髓角处穿孔进入髓腔

C.用球钻提拉式磨除髓顶

D.只要暴露根管口即可

E.以上都不对

Tail Spin

Two dolphins race around in a big pool in the Ocean Park. The smaller dolphin Grace, shown off a few of her tricks, turning around and waving hello to the crowd. The most amazing thing about her, however, is that she’s even swimming at all. She doesn’t have a tail.

Grace lost her tail as a baby when she got caught up in a fish trap.

When the dolphin arrived at the Ocean Park in December 2005, she was fighting for her life. “Is she going to make it?” Her trainer, Abbey Stone, feared the worst. Grace did make it — but her tail didn’t. She ended up losing her flukes and the lower part of her peduncle.

Over the past six years, she has learned to swim without her tail. Dolphins swim by moving their flukes and peduncle up and down. Grace taught herself to move another way—like a fish! She pushed herself forward through the water by moving her peduncles from side to side.

The movement put harmful pressure on Grace’s backbone. So a company offered to create a man-made tail for her. The tail had to be strong enough to stay on Grace as she swam but soft enough that it wouldn’t hurt her.

The first time Grace wore the artificial tail. She soon shook it off and let it sink in the bottom of the pool. Now, she is still learning to use the tail. Some days she wears it for an hour at a time, others not at all. “The tail isn’t necessary for her to feel comfortable,” says Stone, “but it helps to keep that range of motion(动作) and build muscles(肌肉).”

Now, the dolphin is about to get an even happier ending. This month, Grace will star in Dolphin Tale, a film that focus on her rescue and recovery. Her progress has inspired more than just a new movie. Many people travel from near and far to meet her. Seeing Grace swim with her man-made tail gives people so much courage.

小题1:When Grace first arrived at the Ocean Park, her trainer worried about her .

A．physical build

B．potential ability

C．chance of survival

D．adaptation to the surroundings.小题2:A man-made tail is created for Grace to     .

A．let her recover faster

B．make her comfortable

C．adjust her way of swimming

D．help her perform better tricks小题3:The story of Grace inspires people to   .

A．stick to their dreams

B．treat animals friendly

C．treasure what they have

D．face difficulties bravely

关于中水贮水池（箱）的设置，以下（）是正确的。

A.溢流管采用间接排水方式

B.泄水管采用间接排水方式

C.补水管上应设水表计量

D.应有确保不污染自来水的措施

下列属于计算机内存的是( )。

A．高速缓冲存储器Cache
B．光盘
C．U盘
D．软盘

构建社会主义和谐社会是我们的（）。

A.一个治国理想

B.一种治国方略

C.一种治国机制

D.一种治国结果

E.一种权宜之计