径向反应器的中心管和扇形筒上的孔应比催化剂的直径()。A、稍大B、稍小C、相等D、不

题型:单项选择题

问题:

径向反应器的中心管和扇形筒上的孔应比催化剂的直径()。

A、稍大

B、稍小

C、相等

D、不确定

考点:催化重整装置操作工催化重整装置(高级工)催化重整装置(高级工)题库
题型:单项选择题

37-year-old teacher is hospitalized with complaints of weakness, incoordination, dizziness, and loss of balance. The diagnosis is multiple sclerosis (MS). Which of the following signs and symptoms, discovered during the history and physical assessment, is typical of MS

A. Diplopia, history of increased fatigue, and decreased or absent deep tendon reflexes.
B. Flexor spasm, clonus, and negative Babinski’s reflex.
C. Blurred vision, intention tremor, and urinary hesitancy.
D. Hyperactive abdominal reflexes and history of unsteady gait and episodic paresthesia in both legs.

题型:单项选择题

电器能够承受而不发生任何损坏的电流值可以称为( )。

A.泄漏电流

B.额定短时耐受电流

C.额定短路接通能力

D.额定限制短路电流

题型:单项选择题

夫妻双方共同设立遗嘱的协议,属于()

A.共同法律行为

B.协同法律行为

C.单方法律行为

D.双方法律行为

题型:单项选择题

乳牙患龋高峰年龄段为()

A.2~3岁

B.3~4岁

C.5~6岁

D.7~8岁

E.9~10岁

题型:单项选择题

儿童科学文艺的主要体裁有:科学童话、科学故事、科学小品、科学诗、()、科学漫画。

更多题库