下列材料中属于不锈钢的是:()
A、Q235A
B、1Cr18Ni9Ti
C、16MnR
D、20g
参考答案:B
—I'm going to travel along the Mekong River next week.
—______________.
A.Have fun
B.Take care
C.Best wishes
D.Write to me.
儿童脓毒性休克(代偿期)的临床表现包括()
A.烦躁不安或萎靡
B.皮肤花纹,四肢凉,CRT≥3s
C.低血压
D.外周动脉搏动减弱或消失
E.尿量<1ml×kg-1×h-1