采油井班报表上记录的某井日产液量为50t,含水为90%,则该井的日产油为()t。
A.5
B.10
C.15
D.45
参考答案:A
At the _______, we eat moon-cakes and on _______, we eat Turkey.
A.Dragon Boat Festival, Thanksgiving Day
B.National Day, Halloween
C.Mid-Autumn Festival, Thanksgiving Day
D.Chinese New Year, Christmas
陶瓷器具盛装酸性食品时,会析出铅铬等成份,影响人体健康。