体内重要的贮能和直接供能物质是()
A. 糖
B. 蛋白质
C. 脂肪
D. ATP
Winter is setting ___ and the population is facing food and fuel shortages.
A. on
B. off
C. in
D. out
People set ___ fireworks.
A. on
B. off
C. in
D. out
The waiter has to learn how to set___ the table.
A. up
B. off
C. in
D. out