A:埃及
B:埃塞俄比亚
C:利比亚
D:利比里亚
Time
Activity
At 6:00 a.m.
____.
____
Eat breakfast.
At about 7:30 a.m.
Go home.
At about 9:00 p.m.
若二次函数y=x2+bx+5配方后为y=(x-2)2+k,则b、k的值分别为( )
根据汉语默写单词。
①手表____②雨伞____③旧的____
④商店____⑤想要____⑥一,一个____