仔细观察图中的六幅图，在题中空格处填写相应序号。 （1）能够说明大气压存在的是

龋病发展过程()

A．先破坏牙本质再破坏牙釉质，最后崩解成龋洞

B．先破坏牙釉质然后是牙骨质，最后崩解成龋洞

C．先有色素沉着，牙本质崩解成龋洞

D．先破坏牙釉质，然后是牙本质，最后崩解成龋洞

E．先破坏牙本质，然后是牙骨质，最后崩解成龋洞

如图1是探究平面镜成像特点的实验装置图．小鹭将一块玻璃板竖直架在一把刻度尺的上面，并保持玻璃板与刻度尺垂直．再取两根完全相同的蜡烛A和B分别竖直放置在玻璃板两侧的刻度尺上，点燃蜡烛A，进行观察和调整．

（1）选用两根完全相同的蜡烛是为了比较像与物           的关系．

（2）小鹭想探究平面镜所成的像是实像还是虚像，若蜡烛A与玻璃板的位置如图2所示，则光屏应安放在玻璃板右侧，与玻璃板相距           cm．

（3）若蜡烛A以0.2m/s的速度远离玻璃板，则它的像远离玻璃板的速度是           m/s．且像的大小           ．

肺动脉栓塞的典型核医学影像表现是（）。

A.肺灌注显像表现为多发肺段性放射性稀疏或缺损，而肺通气显像正常，两者呈不匹配性改变

B.肺灌注显像表现为正常，而肺通气显像表现为多发肺段性放射性减低或缺损

C.肺灌注显像及肺通气显像均表现为多发肺段性放射性减低或缺损

D.肺灌注显像表现为多发肺段性放射性减低或缺损，而肺通气显像表现为放射性增高

E.肺灌注显像异常部位及肺通气显像异常部位不匹配

简述想象竞合犯的特征及处罚原则。

For each blank, choose the best answer from the four choices and write down on the answer sheet.
(66) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.
(67) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
(68) functions with two layers of protocols. It can connect networks of different speeds and can be adapted to an environment as it expands.
(69) is the popular LAN developed under the direction of the IEEE 802.5.
(70) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.

A．The MAC address

B．The IP address

C．The subnet address

D．The virtual address