葡萄糖-6-磷酸脱氢酶正常时能保护红细胞免受氧化物质的威胁,此酶异常时表现为缺乏症,这是一种常见的单基因遗传病,患者绝大多数平时没有贫血和临床症状,但在一定条件下,如使用氧化剂药物、食用蚕豆等,可能发生明显的溶血性贫血。
()Where'sthebag?
当地球公转经过近日点时,我国出现的地理现象是()
()1.Couldyouhelpme,please?A.OK.
()2.Thanksalot.B.You'rewelcome.
()3.Let'sputthebooksinthebox.C.It'sMonday.
()4.Canyoucarryit?D.No,it'sfull.
()5.Who'sondutytoday?E.lam.
()6.Isitempty?F.No,it'slight.
()7.Whatdayisittoday?G.Certainly.
()8.Isthatbagheavy?H.No.LiLeiisn'there..
()9.Areweallheretoday?I.No,thanks.
()10.Letmehelpyou.J.Yes,Ican.
读等高线图(图中数据单位均为米),判断下列说法正确的是