在杆塔设计时，耐张杆塔除承受垂直荷载和水平荷载之外，还应承受更大的顺线路方向的张力。
参考答案：对
读对话并回答问题。
Linda : Hello. I'm Linda.
Tony : Hi. I'm Tony. What's your last name, Linda?
Linda : It's Smith. What's your last name, Tony?
Tony : It's Brown.
1. What's her first name?
_____________________
2. What's his first name?
3. What's his last name?
4. What's her last name?
1kg某种燃料 ______燃烧时 ______能转化为 ______能的量（放出的热量）叫做这种燃料的热值．热值的单位有 ______和 ______．
at's his last name?