He stood still in front of the shop window ______ he were thinking something.[ ]

A. as though

B. even though

C. as long as

D. although

关于糖尿病饮食治疗的叙述不正确的是（）

A.制定每日总热量

B.一般糖尿病患者每日蛋白质摄入量占总热量的15%～20%

C.糖尿病肾病时，早期应增加蛋白质的摄入

D.制定食谱

E.糖尿病患者每日食盐摄入量不应超过7g