适筋梁的破坏特点是（）
A.受拉钢筋先屈服，然后受压混凝土被压碎
B.不会破坏
C.受压混凝土被压碎，受拉钢筋不屈服
D.受拉钢筋被拉断
参考答案：A
When ________ about his future plans, Zhang Yimou said that his next movie would follow
a modern theme.[ ]
A. asking
B. asked
C. to ask
D. being asked
被誉为“微生物学之父”的是
A．列文虎克
B．达尔文
C．巴斯德
D．袁隆平
