公共政策问题得到认定之后，政策制定者首先要考虑的是（）A、拟定政策方案 B、选择政策

采用“直接存储器存取”方式传送数据时，数据通过总线可直接在存储器和I／O设备之间进行传送。“直接存储器存取”的英文缩写是【11】。

If I were writing a history of my family, some of the darkest moments recorded would be those surrounding Christmas trees. One would certainly think otherwise; selecting and putting up our trees have always been filled with risk.

For example, one afternoon dangerously close to Christmas Eve my mother bought what she thought to be a bargain, a glorious tree that was so full and tall that we could hardly get it into the house. Once we did, my father immediately realized that we would have to hire a carpenter to build a stand for it.

Another December, perhaps the very next one, we bought a tree earlier than we ever had before. We were happy with its shape and delighted that its size was manageable. We easily placed it in a stand, decorated it from top to bottom, and then self-satisfiedly sat back by the fire in its soft light.

Two or three days passed and the truth could not be hidden; we had bought a tree cut so long ago that its needles were coming off. There was nothing to do but undecorated it, take it down, and begin tree shopping again.

Our most recent Christmas tree offered still another difficult task. When we brought it home, once again it seemed larger than it was in the great outdoors. To complicate matters, we had bought a new stand, one whose nuts(螺帽)and bolts(闩子)worked more mysteriously than those of our old stands. I persuaded two young neighbors to stop playing basketball and to help us get the tree into the house and set it correctly in the stand. Unfortunately, no one noticed the mud on our helpers’ shoes, so only after removing several reddish brown sports from the carpet were we able to discuss the question of where the lights and ornaments(装饰)were stored. Perhaps those who cut their own trees have tales more painful than these. I don’t care to hear them, as my family’s experiences are enough to cause me to make the following suggestion: “Let’s forget the tree next Christmas. Let’s simply hang some flowers on the front door and over the mirror in the hall.”

小题1:The darkest moments in the writer’s family were with the fact that        .

A．the family bought big Christmas trees

B．they had problems decorating their Christmas trees

C．they had problems picking suitable Christmas trees

D．they had problems finding carpenters for putting up Christmas trees小题2:We can learn from the passage that the writer would like to        .

A．forget about Christmas stories

B．get the neighbors to put up their trees

C．buy a better tree to celebrate Christmas

D．make other decorations rather than Christmas trees小题3:When the writer said “my mother bought what she thought to be a bargain”, he means      .

A．she bought the tree at a cheap price

B．she didn’t really want to buy it

C．she had to bargain hard with the salesman

D．she couldn’t afford a more expensive one小题4:Which of the following can be the best title for the passage?

A．How to Select a Christmas Tree

B．No More Christmas Tree for Us

C．Dark Moments of Life

D．Christmas Without Trees

本实验中,某同学测得小车的加速度a和拉力F的数据如表所示：(小车质量保持不变)

小题1:根据表中的数据在坐标图上作出a－F图象．

小题2:图线不过原点的原因可能是________．

已知某产品有1000件，其中900件合格品，100件不合格品，先从中任意抽取20件进行检验。

20件中至多有2件不合格的概率为（）。

A.A

B.B

C.C

D.D

深圳吉昌设备有限公司委托深圳机械进出口公司(3122366452)进口一批凸轮轴位置传感器。该批货物于2007年3月20日进口，由龙图报关公司于2007年3月31日向深圳海关申报。已知预录入编号为164565206，该批货物已办商检和《机电产品自动进口许可证》(编号为2018—5642—9520)。该批商品的法定计量单位为“千克”。

中华人民共和国海关进口货物报关单

请根据以上资料，选择以下栏目正确选项：

“装货港”栏应填写（）。

A．横滨

B．神户

C．东京

D．千叶