以下能够完成DNA分子连接作用的酶有哪些()?
A.大肠杆菌DNA连接酶
B.甲基化酶
C.T4 DNA连接酶
D.EcoR Ⅰ
A.大肠杆菌DNA连接酶
B.甲基化酶
C.T4 DNA连接酶
D.EcoR Ⅰ
第3题
A、apply for
B、subject to
C、benefit from
D、rely on
第6题
计算作图题 某厂生产长度为(10±0.2)毫米的圆轴,检测人员每隔一定时间随机抽取5个样品,共取20组,圆轴长度测量数据表1如表所示,试做控制图,并判断该工序是否处于稳定状态。(计算保留2位有效数字) 表1 圆轴长度测量数据表 序 号 X1 X2 X3 X4 X5 R 1 10.009 9.978 10.010 9.937 10.010 49.945 9.989 0.073 2 9.947 10.088 10.016 10.013 9.962 50.026 10.005 0.141 3 10.031 9.981 10.021 9.950 10.051 50.034 10.007 0.101 4 10.010 9.915 10.009 10.020 9.982 49.936 9.987 0.105 5 9.982 10.026 9.948 10.012 9.912 49.880 9.976 0.114 6 10.035 9.995 10.038 9.965 10.010 50.043 10.009 0.073 7 9.920 10.070 9.884 10.015 10.000 49.838 9.968 0.186 8 10.006 9.981 10.009 10.026 9.939 49.861 9.992 0.087 9 10.000 9.996 10.057 9.940 10.019 50.017 10.003 0.117 10 9.970 10.095 9.975 10.059 9.942 50.041 10.008 0.153 11 10.140 10.007 9.998 10.051 9.934 50.139 10.028 0.215 12 9.950 10.047 10.009 10.010 10.068 50.086 10.017 0.116 13 10.030 9.990 9.968 9.911 9.972 49.873 9.975 0.121 14 9.930 9.960 10.109 9.973 10.005 49.982 9.960 0.174 15 10.070 10.025 9.988 10.029 9.950 50.062 10.012 0.120 16 9.960 10.052 9.925 10.009 10.008 49.962 9.992 0.127 17 10.010 9.958 10.150 10.090 9.969 50.180 10.036 0.192 18 9.990 10.028 9.978 9.919 10.081 49.959 9.992 0.172 19 10.120 9.940 10.010 10.089 9.942 50.101 10.020 0.180 20 9.948 10.093 9.971 10.012 9.986 50.010 10.002 0.145
第10题
A、①②④③⑤⑥
B、②⑤④③①⑥
C、②⑤③④①⑥
D、②⑤③⑥④①
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