肌肉走行方向与眼轴不一致的是
A．上直肌
B．下直肌
C．内直肌
D．外直肌
参考答案：A, B
—Where's Miss Lin? I can't find _____ anywhere.
—Maybe she is on the playground.
A. she
B. her
C. hers
从cDNA文库中获得的短序列是（）。
A.STS
B.UTR
C.CDS
D.EST
