康明斯KTA-19G2柴油机的水泵是通过()驱动的。
A.电动机
B.皮带
C.链条
D.齿轮
参考答案:D
Mr. Smith ______ a grammar book meant for senior high school students and will almost finish it.
A.has been writing
B.has written
C.was writing
D.has been written
男,18岁,全身水肿、尿少半月。查:血压110/70mmHg,尿蛋白++++,尿RBC0~1个/HP,尿WBCO~2个/HP,Hb130g/L,WBC4.5×10/L,N62%,BUN6.5mmol/L。
为明确诊断,下列哪项检查最有价值()
A.血肌酐
B.血K、Na、Cl测定
C.二氧化碳结合力测定
D.血脂测定
E.血清Tp与ALB