生长激素生理性运动刺激试验通常仅作为疑诊患儿的筛查试验。()
参考答案:对
—I’m sorry to have kept you waiting.
—Oh, not at all. I ______here for only a few minutes.
A.have been
B.had been
C.was
D.will be
“三通”是三部古代史学著作的统称,下列著作不属于“三通”的有()
A.《资治通鉴》
B.《文史通义》
C.《文献通考》
D.《通志》