骨骼肌内的结构是()。
A、三联体
B、二联体
C、四联体
D、五连体
参考答案:A
绿豆芽的白嫩部分,主要是由种子的哪部分发育而来的:
A.胚芽
B.胚根
C.胚轴
D.胚乳
Did the teacher say _____ in the last lesson? [ ]
A. something interesting
B. anything interesting
C. interesting something
D. interesting anything