When does your father get up every morning? He()up at six.
A.get
B.got
C.gets
D.will
参考答案:C
—— How ________ can you finish the drawing?
—— In a week.
A.often
B.soon
C.long
D.rapid
不属于DNA复制特点的是
A.以DNA为模板B.复制时按碱基互补配对原则C.复制沿3'—5'方向合成D.需要DNA聚合酶E.以RNA为引物