最小的两位数是______,它是______和______两个质数的积.
最小的两位数是10,
因为10=2×5,
所以它是2和5两个质数的积;
故答案为:10,2,5.
It is obvious to the students ______they should get well prepared for their future.
A.which
B.that
C.as
D.whether
筒压法检测砖砌体中砌筑砂浆强度,特细砂水泥砂浆筒压荷载值应为().
A.10kN
B.15kN
C.20kN
D.25kN