--Is everyone here?--Not yet. Look, there_____the rest of our students.
A. is coming
B. comes
C. has come
D. come
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I can not see that word clearly from here._________.
A. Neither I can't.
B. Neither I can.
C. I can't neither.
D. Neither Can I.
双光束分光光度计与单光束分光光度计相比,其突出优点是()
A. 可以扩大波长的应用范围
B. 可以采用快速响应的检测系统
C. 可以抵消吸收池所带来的误差
D. 可以减小因光源的变化而产生的误差
前尿道损伤时常出现
A. 无血尿
B. 终末血尿
C. 肉眼血尿
D. 尿道外口滴血
E. 盆腔腹膜外血肿
486.0nm、486.2nm,其标准值是486.02nm则其波长准确度是()
A. 0.02nm
B. 0.08nm
C. 0.05nm
D. 0.1nm