下列盆景形式中为自然式的是()。
A、六台三托一顶
B、大树合栽
C、方拐
D、对拐
参考答案:B
请从方框中选择合适的单词填入短文中,使其意思完整(每词限用一次,其中有两个
多余选项)。
classroom, playground, tired, down, small, gives, lying
We are in the l now. We are having a PE lesson. Mr Smith 2 us some orders. Look, we
are jumping up and 3 ten times. David can't do it, because he is too 4 . So he is 5 on the
grass now, having a rest.
点彩红细胞胞质中的颗粒为().
A.残存变性的DNA
B.残存变性的RNA
C.残存变性的脂蛋白
D.核糖体
E.金属颗粒沉淀