由题意可得线段图:
3×23=2(千克);
答:这只鸡重多2千克.
单项选择。
— Have a good trip!
— .
A. Thank you
B. You're welcome
C. Have a good trip, too
D. Yes, please
甲类传染病是指()
A.鼠疫、狂犬病
B.黑热病、炭疽
C.鼠疫、炭疽
D.鼠疫、霍乱
E.炭疽、霍乱