压的方法有两种,一种是梳子压,一种是()。
A.刷子压
B.毛巾压
C.发胶压
D.用手掌压
参考答案:D
对初次免疫应答时产生抗体特点的错误叙述是()
A.潜伏期长
B.抗体合成率高
C.优势Ig为IgM
D.抗体高峰滴度低
E.为低亲和性抗体
It is a general rule that children’s games and books seek to teach and ______ at the same time.
A.satisfy
B.appreciate
C.entertain
D.content