If the place named for the loading is simply a port or dock,notice of readiness may be given as soon as the ship arrives()although she is not in the particular spot where the loading is to take place.
A. in the loading place
B. in the port or dock
C. in the loading spot
D. in the discharging spot
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患者,25岁,男性,尿频,排尿有不适感,及腰骶、会阴部疼痛,便后或排尿后尿道有白色分泌物溢出。首先应考虑是()
A. 子痈
B. 精窿
C. 子痰
D. 肛痈
E. 精浊
超声波知识中,"在一定的外力作用下,晶体发生压缩或伸长变形,在物质表面出现电荷,这种由力转化为电的现象"属于()
A. 声波
B. 超声波
C. 压电效应
D. 逆压电效应
E. 超声波的发生
下列哪项反应属生物转化第二相反应()
A. 醛变为酸
B. 葡萄糖醛酸苷
C. 硝基苯转变为苯胺
D. 乙酰水杨酸转化为水杨酸
E. 苯酚形成苯