枣粘虫以蛹在枣树主干粗皮裂缝及树洞内（）越冬。
参考答案：结茧
In America, ______ car is ______ popular means of transportation.
A．the; a
B．a; the
C．the; the
D．the; /
粘土加热后的体积收缩近似线收缩的（）
A、十倍
B、一倍
C、三倍
D、六倍
