筒车在中国古代南方农业生产中发挥过重要作用,这一灌溉工具创制于()。
A、三国
B、南北朝
C、唐代
D、南宋
参考答案:C
时态填空。
1. He______ (go) to America the year before last.
2. — What you ______ (do)?
— I (be) a teacher.
3. Do you like ______ (drink) milk?
4. He ______ ______ (not have) his supper yet.
5. We ______ (see) Uncle Li tomorrow.
6. Joan's mother often ______ at four, now she ______ (cook).
7. He (read) a book when the accident ______ (happen).
8. ______ (travel) by air is very fast.
9. Let us ______ (wait) outside.
10. The teacher told us ______ (not talk) any more.
患者女,25岁,因头晕、乏力伴眼睑水肿3个月来诊,否认肝炎病史,无药物食物过敏史,其姐姐患有系统性红斑狼疮。查体:BP130/80mmHg,重度贫血貌,眼睑水肿,心肺听诊无异常,双下肢轻度凹陷性水肿。
门诊首要完善的检查应包括()
A.肾穿刺活检
B.食物及呼吸过敏原测定
C.血常规
D.尿常规
E.骨髓穿刺
F.肾脏ECT