[单项选择]The joint of the riser in a marine riser system that compensates for heave,the up-and-down motion of a floater,is the(). A. flex joint B. slip joint C. heave joint D. riser joint
第8题: [单项选择]在货币供应量中,由流通中现金。企事业活期存款构成狭义货币供应量,一般简记为( )。 A. M0 B. M1 C. M2 D. M3 参考答案:B 答案解析:按照流动性的不同,我国目前将货币供应量分为三个层次:流通中现金(M0);由流通中现金、企事业活动存款构成的狭义货币供应量(M1);由狭义货币供应量、居民储蓄