---He lost his job last week, but he seems happy．

---I think he _____ to put on a brave face．

A．is trying

B．tries

C．tried

D．has tried

男孩，11岁，为胰岛素依赖型糖尿病，自己测血糖及尿糖，近3个月来所测血糖及尿糖均比较正常，今测糖化血红蛋白HbA₁c为15%。对此患儿的情况最适当的判断是

A．糖尿病控制满意
B．食物中脂肪量过高
C．血糖及尿糖测试欠正确
D．胰岛素剂量偏高
E．患儿的葡萄糖肾阈低