物流最重要的经济性指标是物流设施与设备的( )比率。A．容积利用 B．时间利用 C

在最近的一则广告中，一家大型谷物食品公司争论到，受教育越好的人，在他们还是孩子的时候，经常吃燕麦粥的可能性就越大。该公司引用了对全国大学毕业生随机调查报告来作为例证。报告显示，在被调查的人中有4/5的人在他们年幼的时候每周至少吃一次燕麦粥。

下面哪一项是支持谷物食品公司结论的附加信息？（）

A．现在的大学毕业生中有4/5的人经常吃燕麦粥

B．没有取得大学学位的人在他们是孩子时经常吃燕麦粥的比例不到4/5

C．在那些除了接受过大学教育，还接受过其他教育的人中，有4/5的人在他们是孩子时经常吃燕麦粥

D．大学毕业生与非大学毕业生合在一起的整个人口中，有多于4/5的人在他们是孩子时经常吃燕麦粥

肝硬化门脉高压时，B超表现为（）

A.门静脉直径>14mm

B.脾静脉直径<10mm

C.食管胃底静脉曲张

D.腹壁静脉曲张

E.颈静脉怒张

I was a single parent of four small children, working at a low paid job. Money was always tight, but we had a (1) over our heads, food on the table, clothes on our backs, and if not a lot, always (2) . Not knowing we were poor, my kids just thought I was (3) . I’ve always been glad about that.

It was Christmas time, and although there wasn’t (4) for a lot of gifts, we planned to celebrate with a family party. But the big (5) for the kids was the fun of Christmas (6) .

They planned weeks ahead of time, asking (7) what they wanted for Christmas. Fortunately, I had saved MYM120 for (8) to share by all five of us.

The big (9) arrived. I gave each kid a twenty-dollar bill and (10) them to look for gifts of about four dollars each. Then everyone scattered. We had two hours to shop; then we would (11) back at the "Santa’s Workshop".

Driving home, everyone was in high Christmas spirits, (12) my younger daughter, Ginger, who was unusually (13) . She had only one small, flat bag with a few candies—fiftycent candies! I was so angry, but I didn’t say anything (14) we got home. I called her into my bedroom and closed the door, (15) to be angry again. This is what she told me.

"I was looking (16) thinking of what to buy, and I (17) to read the little cards on the ’Giving Trees’. One was for a little girl, four years old, and all she (18) for Christmas was a doll. So I took the card off the tree and (19) the doll for her. We have so much and she doesn’t have anything. "

I never felt so (20) as I did that day.

19（）

A.made 

B.searched 

C.bought 

D.fetched

对于块材地面，对接缝高差过大的地方，应（）。

A.磨平

B.不作处理

C.返工重新铺贴

D.设计修改

一套完整的RFID系统由（）组成

A.电子标签

B.阅读器

C.应用软件系统