下面四个选项中，不正确的是( )。A．行政法律关系的客体是指，在国家行政管理活动中，

患者右下6缺失3个月，要求固定修复。

如果可以固定桥修复，以下基牙数目确定的影响因素，不正确的是（）

A.患者咀嚼习惯

B.邻牙牙槽骨情况

C.邻牙牙周膜情况

D.咬合情况

E.以上都不是

Passage Four

Read the passage below and then do the exercises that follow.

If a Mecca exists for today’s youth, it must take the form of a rock concert. Such a colossal event draws people from surprisingly distant places and from oddly diverging lifestyles. The sophisticated college student may be seated next to the wide-eyed junior high cheerleader, the latter showing fright at the approach of a wild-eyed freak. How do these incompatible character types find a mutual appeal in rock concert What induces young people to exchange the few dollars earned through babysitting or car washing for a concert ticket

To many, the answer is immediately obvious—the music is the source of appeal at a concert. The quality of the sound produced, however, frequently casts doubt on this explanation. Unquestionably, rock concertsare loud ; the decibel level of some reportedly exceeds that attained by a jet plane on takeoff. In addition, this aural assault is often intensified by an out-of-tune guitar, by the faltering voice of the performer, or by the bad acoustic in the concert hall. Rock groups generally correct these problems in a studio; their recordings may even boast pleasing harmonies with intelligible lyrics. So why do we battle crowds to secure choice seating at a concert creates a magical, otherworldly atmosphere, reminiscent of a childhood never-never land. An eerie darkness shrouds the hall, and then, just as in our favorite fairy tale, the supernatural being( otherwise identified by the vulgar term, "rock star") appears in a burst of light. In another context he would have been known as a" god out of the machine. " Bizarre lighting schemes and gimmicks such as mock hangings or fire-breathing contribute to the atmosphere of other-worldliness in some acts. The fans are permitted only a glimpse of the star before he vanishes once more in the darkness, only to materialize the following evening in a concert hall hundreds of miles away. The stage becomes the rock star’s only natural habitat; for us, he can have no existence apart from it. We can scarcely conceive of our idols performing such mundane activities as going to the dentist, shopping for tuna fish, or changing the baby, perhaps we have a need to believe in an illusory creature of the night, somehow different from ourselves. Who fits this description better than a rock star

What method/technique is employed to develop the above passage ？

关于红细胞平均指数，错误的叙述是()

A．贫血患者虽有RBC明显降低，但其平均指数可正常

B．MCV、MCH、MCHC三者之间无联系

C．MCV降低，MCH降低，其MCHC也一定降低

D．MCV升高，MCH升高，其MCHC也一定升高

E．红细胞平均指数正常，提示红细胞形态正常

患者，女性，32岁。1月前无明显诱因开始发热，体温37．5～38．5℃，持续不退，并盗汗。经抗感染治疗无效，渐出现上腹胀满，腹部隐痛，消瘦、乏力，排黏液便每天2～3次。11年前患肺结核病。月经不调，婚后7年未生育。查体：全腹压痛，腹壁柔韧感，移动性浊音阳性。X线：提示右肺尖结核。

提问：需要延长抗结核疗程的结核性腹膜炎是（）

A.渗出型

B.粘连型

C.增殖型

D.干酪型

E.混合型

F.以上都是

进行GPS外业工作之前，必须做好实施前的（）、（）、器材筹备、观测计划拟定、GPS仪器检较以及设计书编写等工作。