单项选择题化学性刺激所产生腹痛性质为()

A.阵发性绞痛
B.持续性锐痛
C.持续性疼痛伴阵发性加剧
D.持续性钝痛或胀痛


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1.单项选择题如果路口导向线设置成黄色虚线,那么车辆可以行驶在其()。

A.内侧
B.外侧
C.线上
D.以上都不对

2.单项选择题经济法与民法的交融性最明显地表现在()。

A.社会保障领域
B.国家直接投资经营
C.国家宏观调控领域
D.市场障碍排除领域

4.单项选择题The nature of male animals is to ______ dangerous tasks.

A.undertake
B.underline
C.underlie
D.underestimate

6.单项选择题Do you ever play tennis?()I have played a few times.I’d rather ()jogging.

A.Hardly ever ;going
B.Hardly ever ;go
C.Hardly never;go
D.Hardly never ;going

7.单项选择题()–Isn’t it kind of dangerous?You could get attacked by a shark.

A.I am thinking of taking up scuba diving.It is exciting.
B.A lot more people get hurt walking down the street.
C.A lot of people think rock climbing is exciting.