一般镜片开槽深度选择在深度调节钮上刻字（）的范围内。A、1～5 B、2～6 C、4～7D

大隐静脉曲张患者在下列情况下，不可进行手术治疗的是（）

A.小腿慢性溃疡

B.大隐静脉瓣膜功能不全

C.患肢深静脉回流不佳

D.患肢皮肤湿疹

E.交通支瓣膜功能不全

When a disease of epidemic proportions threatens the public, scientists immediately get to work, trying to locate the source of affliction and find ways to combat. Vaccination is one of the effective ways to protect the (1) population of a region or country which may be (2) grave risk. The process of vaccination allows the patient’s body to (3) immunity to the virus or disease so that, if it is encountered, one can fight it (4) naturally. To accomplish this, a small weak or dead (5) of the disease is actually injected into the patient in a controlled environment, (6) his body’s immune system can learn to fight the invader (7) . Information (8) how to penetrate the disease’s defenses is (9) to all elements of the patient’s immune system in a process that occurs naturally, in which genetic information is passed from cell to cell. This makes sure that (10) the patient later come into contact with the real problem, his body is well equipped and trained to (11) with it, having already done so before.

There are, however, dangers (12) in the process. (13) , even the weakened version of the disease contained in the vaccine proves (14) much for the body to handle, resulting in the immune system (15) , and, therefore, the patient’s death. Such is the case of the smallpox vaccine, (16) to eradicate the smallpox epidemic that nearly (17) the whole Native American population and killed massive numbers of settlers. (18) 1 in 10,000 people who receive the vaccine (19) the smallpox disease from the vaccine itself and dies from it. Consequently, the process, which is truly a (20) , may indeed hide some hidden curses.

11（）

A.handle

B.familiarize

C.deal

D.tackle

对当前我国税源管理模式的特点，以下说法正确的是（）。

A.建立了税源管理的有效机制

B.实现了税源的全面监控和分析

C.加强了税源管理的基础工作

D.税收管理员以流程为导向，以管事为主

全国被盗抢汽车信息系统包括哪些功能模块？（）

A.被盗汽车信息上网登记发布

B.已查获被盗车辆信息撤销

C.异地查获车辆移交办理

D.被盗抢车辆信息下发