—No, you _______. It's 10 o'clock. You _______ go to bed.
A:can't; can
B:can't; must
C:may not; can
D:needn't; must
被称为经济发展“先行官”的产业是( )
The post office is ________ the park.
脱式计算,能简算的要简算。
① 56 ×1.2× 56 ÷1.2
②3.65÷1.25÷0.8
③34÷( 34 + 23 )
④ 25 × 1115+25 ÷ 154
⑤( 12+34 )÷ 56−23
⑤35÷( 56−23 )×3]