以下不属于理化检测实验室常用的标准的是（）
A.工作标准
B.技术标准
C.管理标准
D.无标准
参考答案：D
体温在39℃以上，24小时内波动<1℃，这种热型为（）
A.稽留热
B.弛张热
C.间歇热
D.回归热
E.波状热
I have no doubt that if the students’ interest in the subject is aroused, they will () the challenge and commit more of their time and energy to their studies.
A. face up to
B. keep pace with
C. stand out against
D. fall back on
