Bill and Tom ______like eating eggs. [ ]
A. does
B. don't
C. not
D.does
答案:B
5.98÷2.3=598÷23=26.______.
居住小区管网漏失水量及未预见用水量之和可按最高日用水量的( )计。
A.5%~10%
B.15~20%
C.10%~15%
D.20%~25%