函数UPPER("12ab34CD")的结果是______。
A.12AB34CD
B.12ab34CD
C.12ab34cd
D.12AB34cd
参考答案:A
用所给动词的适当形式填空。
1. When I returned home, he _____ (leave).
2. By ten yesterday evening, she __ (finish) writing.
3. He _ (study) English for five years before he came here.
4. It __ (stop) raining when l woke up this morning.
5. I __ (not read) the book because I had read it before.
根据《特种设备作业人员监督管理办法》(国家质检总局令第140号)的规定,特种设备作业人员复审合格的条件,说法正确的是()。
A、在有效期间断作业不超过6个月
B、在有效期内没有违章作业或违章管理
C、在有效期内经过至少20学时的培训
D、填写符合要求的复审申请表