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【单选题】

12()

A.aimed
B.targeted
C.focused
D.pointed

A.
Digital photography is still new enough that most of us have yet to form an opinion about it (1) develop a point of view. But this hasn’t stopped many film and computer fans from agreeing (2) the early conventional wisdom about digital cameras — they’re neat (3) for your PC, but they’re not suitable for everyday picture taking.
B.
The fans are wrong. More than anything else, digital cameras are radically (4) what photography means and what it can be. The venerable medium of photography (5) we know, it is beginning to seem out of (6) with the way we live. In our computer and camcorder (7) , saving pictures as digital (8) and watching them on TV is no less practical — and in many ways more (9) than fumbling with rolls of film that must be sent off to be (10) .
C.
Paper is also terribly (11) . Pictures that are incorrectly framed, (12) , or lighted are nonetheless committed to film and ultimately processed into prints.
D.
The digital medium changes the (13) . Still images that are (14) digitally can immediately be shown on a computer (15) , a TV screen, or a small liquid crystal display (LCD) built right into the camera. And since the points of light that (16) an image are saved as a series of digital bits in electronic memory, (17) being permanently etched onto film, they can be erased, retouched, and transmitted (18) .
E.
What’s it like to (19) with one of these digital cameras It’s a little like a first date — exciting, confusing and fraught with (20) .
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【多选题】下列有关药物经肾脏排泄的叙述中,正确的是

A.
药物经肾小管的分泌是主动转运过程
B.
药物经肾小管的分泌是被动转运过程
C.
肾小管对药物的再吸收属于简单扩散过程
D.
影响肾小管再吸收的主要因素为尿量和尿液pH
E.
酸性药物在酸性尿液中易于排出

【单选题】肝素的抗凝血作用机制是

A.
直接灭活凝血因子Ⅱa、Ⅶa、Ⅸa、Ⅹa
B.
增强抗凝血酶Ⅲ的活性
C.
抑制凝血因子的生物合成
D.
直接与凝血酶结合,抑制其活性
E.
拮抗维生素K

【多选题】有抗菌作用的药物是

A.
普鲁卡因
B.
青霉素
C.
链霉素
D.
红霉素
E.
环丙沙星

【多选题】阿昔洛韦主要用于治疗

A.
单纯疱疹病毒
B.
生殖器疱疹
C.
带状疱疹
D.
流感病毒
E.
乙型肝炎病毒

【单选题】临床上最常用的抗麻风病药是

A.
青霉素
B.
链霉素
C.
氨苯砜
D.
氨硫脲
E.
环丙沙星

【多选题】可避开首关消除的给药途径是

A.
肌内注射
B.
静脉注射
C.
皮下注射
D.
口服
E.
舌下含化