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【单选题】
经长期观测人们在宇宙中发现了“双星系统”,“双星系统”由两颗相距较近的恒星组成,每个恒星的线度远小于两个星体之间的距离,而且双星系统一般远离其他天体。两颗星球组成的双星,在相互之间的万有引力作用下,绕连线上的O点做周期相同的匀速圆周运动。现测得两颗星之间的距离为L,质量之比为m1∶m2=3∶2。则可知( )A.
m 1 、 m 2 做圆周运动的角速度之比为 2 ∶ 3
B.
m 1 、 m 2 做圆周运动的线速度之比为 3 ∶ 2
C.
m 1 做圆周运动的半径为 2/5 L
D.
m 2 做圆周运动的半径为2/5 L
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【多选题】关于尖锐湿疣,以下描述正确的是:
A.
是由人乳头瘤病毒感染所致
B.
尖锐湿疣主要是由HPV-6或HPV-11引起
C.
好发于中老年男性
D.
潜伏期一般1-8个月，平均3个月
E.
尖锐湿疣是良性增生，不是发生恶变
【单选题】听力原文：M: How did Jim do this year? Did he get a scholarship? W: It was just his math courses that let him down and didn' t measure up. Q: What does the woman mean? (16)
A.
Jim' s grades were too poor to get a scholarship.
B.
Jim would have got a sch01arship if his math grades had been better.
C.
Jim' s math was poor since he doesn' t know how to measure.
D.
Jim' s math grades sharply go down this time.
【简答题】已知∠1=40°，则∠1的余角为______，∠1的补角为______．
【单选题】上图所示分别为
A.
B.
C三个化合物的红外光谱图,图谱所对应的化合物是:____ A为1—辛烯、B为正辛烷、C为1—辛炔。 A为正辛烷、B为1—辛烯、C为1—辛炔。 A为1—辛烯、B为1—辛炔、C为正辛烷。 A为1—辛炔、B为1—辛烯、C为正辛烷。
【简答题】撞色 在色环上如何定义?
【单选题】下面关于继承的说法，正确的是( )。 class math{ … }; class math1:math{ … }；
A.
math 类、math1 类没有继承关系
B.
math1 类是 math 类的父亲
C.
math1 类对 math 类继承是公有继承
D.
math1 类对 math 类的继承是私有继承
【单选题】听力原文：M: How did Jim do this year? Did he get a scholarship? W: It was just his math courses that let him down and didn't measure up. Q: What does the woman mean? (16)
A.
Jim's grades were too poor to get a scholarship.
B.
Jim would have got a scholarship if his math grades had been better.
C.
Jim's math was poor since he doesn't know how to measure.
D.
Jim's math grades sharply go down this time.
【单选题】下列关于尖锐湿疣正确的说法是（）
A.
由于本病是一种皮肤粘膜良性赘生物，可不予治疗
B.
是我国最常见的性病之一
C.
和生殖器疱疹等病毒感染性性病一样，难以治愈
D.
大多数尖锐湿疣患者自觉症状明显，尤以男性为甚
E.
诊断尖锐湿疣的金标准是醋酸白试验阳性
【简答题】何为相近吸引?并举1例。
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