单纯性肥胖的叙述正确的是()。
A.多由某些内分泌疾病引起
B.表现为向心性肥胖
C.常有一定的遗传倾向
D.全身脂肪分布不均
E.青少年期没有生殖器发育迟缓
参考答案:C
低蛋白血症时可出现胆囊壁增厚。
You detect oil around your tank vessel while discharging. The first thing to do is().
A.try to find out where the oil is coming from
B.call the master
C.have the pumpman check the discharge piping
D.shut down operations