78 16 65 72 08 20 63 14 07 02 43 69 97 28 01 98
32 04 92 34 49 35 82 00 36 23 48 69 69 38 74 81
A:08
B:14
C:07
D:02
The doctor advises me to take the medicine t____ a day, in the morning and evening.
秦岭—淮河以北和以南的河流相比较,北方的河流最显著的特点是( )