“物候”指的是什么？（）
A.事物展现出的外部特征
B.动物与气候之间的复杂关系
C.事物的本质特征
D.动物的行为预测功能
参考答案：D
—So hard _____ in the past few months that he has made great progress in English.
—I can see that; only a few mistakes _____ in the exam.
A．has he worked; did he make
B．he has worked; did he make
C．he has worked; he made
D．has he worked; he made
患者男性，45岁。上消化道大出血，血压70/35mmHg，面色苍白，神清。
术前了解病情哪一项次要（）
A.全身状况
B.血压、脉搏
C.肝肾功能的状况
D.血球压积
E.T3，T4浓度
