联网收费中IC卡出入库必须做到哪些?
参考答案:
IC卡出入库必须做到认真清点、摆放整齐,正常卡、预制卡和坏卡分类存放。
I was surprised by her words,which made me recognize ______ silly mistakes I had made.
A.what
B.that
C.how
D.which
在基因表达过程中,原核生物所特有,而真核生物没有的物质是
A.σ因子
B.冈崎片段
C.起始密码子AUG
D.tRNA的稀有碱基