在北方沙土草坪上,冬季为草坪补充水分的最佳时间是()。
A.早晨
B.中午
C.傍晚
D.夜间
参考答案:B
Harry Potter and the Sorcerer’s Stone was such _____ most interesting novel that many children want to read it _____ second time.
A.a; a
B.the; a
C.the; the
D./; the
作业人员应身体健康,无妨碍工作的病症,体格检查至少()一次。
A.3个月
B.半年
C.一年
D.两年