可被tRNA反密码5’-TGC-3’识别的密码是()
A.5’-GCA-3’
B.5’-GCG-3’
C.5’-CCG-3’
D.5’-ACG-3’
参考答案:A
_____the morning of September 10th, we are going to give our teacher some flowers.[ ]
A. On
B. In
C. At
D. /
直径大,要求高的盘类薄壁工件,可用()装夹