A：中华鲟
B：青蛙
C：海豚
D：企鹅
“美丽中国梦”主题班会上，同学们畅所欲言。下列措施对建设美丽中国不利的是（ ）
— How can I stay in shape?
— A well-balanced diet together with regular exercise ______ you'll make it.
旱共____画，焦共____画。
38＋25=____
2000×4=____
505×1=____
(45＋55)×3=____
