幼儿的骨髓全部是红骨髓,造血机能强。
参考答案:对
Could I speak to ____________ is in charge of the company?
A.anyone
B.someone
C.whoever
D.no matter who
Getting good marks is about _______ to prepare for and to write exams but not just about ______facts you know.
A.what; what
B.how; that
C.how; what
D.what; which