婴儿每日需要脂肪量应占总需能量的()。
A.70%~75%
B.30%~35%
C.50%~60%
D.45%~35%
E.30%~50%
参考答案:B
Bulkheads which from part of the tanks on a vessel are stiffened to withstand().
A.deck loads from above
B.dynamic forces while afloat
C.hydrostatic pressure
D.over-pressurization
设备安装时所用灌浆料,分为()和其他灌浆料。
A.中石混凝土
B.细石混凝土
C.无收缩混凝土
D.环氧砂浆
E.微膨胀混凝土