下列哪种物质是能引起胃肠胀气的碳水化合物（）。
A.蔗糖
B.糖原
C.木糖
D.水苏糖
E.淀粉
参考答案：D
There's a feeling in me _____ we'll never know what a UFO is-not ever. [ ]
A. that
B. which
C. of which
D. what
i5T3.5智能车床起吊机床时，钢丝绳角度不得大于多少？
