后牙游离缺失,在基牙上设计Ⅱ型卡环,以减轻基牙负担,模型放在观测台上应()
A.向前倾斜
B.向后倾斜
C.向左倾斜
D.向右倾斜
E.平放
参考答案:B
Because the man’s gift was too expensive, the girl ________ to accepted it.
A.rejected
B.denied
C.refused
D.unwilling
执行下面的程序段后,b的值为 【6】 。 a=300 b=20 a=a+ b b=a-b a=a-b