产品组合的关联性

平面镜成像的特点：

（1）平面镜成______像，实物在镜前，______在镜后；

（2）平面镜成的像与实物大小______，像和实物到镜面的距离______．

词性变换（15’）

小题1:He is ________(humor),he always tells us funny jokes.

小题2:What fun it is _______(learn)foreign language.

小题3:Did you enjoy__________(you)at the party yesterday?

小题4:We have a ________(month)test on each subject.

小题5:When we arrived at the park, we could not wait _______(take)many photos of the park.

小题6: _______(sad), many wild animals lost their lives because of people.

小题7:Many polar bears die because of _______(lose) their living areas.

小题8:You had better ________(not shout)at the children. Be patient.

小题9:When Xi Wang was born, she _______(weigh)just 100 grams.

小题10:The radio says it will be much _______(snow)tomorrow.

小题11:Look! There are many________(fisherman) fishing in the river.

小题12:Tomorrow will be a hot day with temperatures in the _____________(thirty).

小题13:It’s______(correct)if you drop litter(垃圾)in nature nerves.

小题14:We_______(sleep)at 10.p.m last night.

小题15:A lot of ___________(tour) go to Zhalong to watch the birds every day.

惊痫包括下列哪些症状（）

A.发作时吐舌惊叫大啼

B.面色时红时白

C.舌暗有瘀斑，脉细涩

D.喉中痰鸣

E.恍惚失魂

如图是探究“浮力的大小与哪些因素有关”实验的若干操作，根据此图回答下列问题：

（1）若探究浮力大小与物体浸没的深度的关系__________(填序号)

（2）若选用的操作是②④⑥，可探究浮力的大小与__________是否有关。

（3）若探究浮力大小与物体排开液体体积的关系，应选用的操作是 ________(填序号)

针对不同的传输介质，Ethernet网卡提供了相应的接口，其中适用光纤的网卡应提供( )。

A．AUI接口

B．BNC接口

C．P/O接口

D．RJ-45接口