A naturally aspirated diesel engine at full throttle will have an intake manifold pressure ()
A. slightly less than atmospheric pressure
B. approximately equal to exhaust manifold pressure at all times
C. that is widely fluctuating constantly
D. decreasing as engine load increase
简论西方发达国家的金融风险防范体系对构筑我国金融风险防范体系的借鉴意义。
对同轴度要求较高的零件,一般都采取()的方法来保证内、外圆的同轴度要求。
A. 自为基准
B. 基准统一
C. 互为基准
D. 各为基准
情报侦查船用于缉私情报线索的搜集、调查跟踪及取证,()查缉涉嫌走私船只。
A. 可以
B. 不准
C. 支队批准后可以
D. 总队批准后可以