【单选题】以氧化有机物获得能源,以有机物为碳源的微生物的营养类型是()
【简答题】化能无机营养型微生物的能源是__________,氢供体是__________,基本碳源是__________,这类微生物的代表如__________、__________、__________、__________和__________等。
【判断题】地球上自由静止的水面称为大地水准面。( )
【单选题】London is becoming a serious______to New York as the world's banking and financial services center.
【单选题】There is a new type of advertisement becoming increasingly common in newspaper classified columns. It is sometimes placed among 'situations vacant', although it doesn't offer anyone job, and sometimes...
A.
informs job hunters of the opportunities available
B.
promises useful advice to those looking for employment
C.
divides available jobs into various types
D.
informs employer that people are available for work
【单选题】在化能无机营养型的微生物中,用于合成复杂有机物的能量和还原力的来源是( )。
B.
能量通过底物磷酸化产生,还原力通过H2提供。
C.
能量通过无机物氧化产生,还原力通过消耗ATP逆呼吸链产生。
D.
能量通过有机物氧化产生,还原力通过H2提供。
【单选题】图示三杆结构,欲使杆3 的内力减小,应该( )。【图片】