作为支护的锚杆安装达到规定的螺母扭矩后，（）为了网的压茬等原因卸下螺母，重新安装。
参考答案：不得
This is the very reason ______ he gave for his coming late to the meeting. [ ]
A. that
B. which
C. as
D. why
将冬麦草母株分割成若干小丛，分别栽培，成为几个独立的新植株，这种繁殖方法叫（）
A、分株
B、分蘖
C、扦插
D、埋条
