题目内容

以下对静定结构内力的论述，哪项正确

A. 温度的变化会引起杆件内力的变化
B. 支座的不均匀沉陷会引起杆件内力的变化
C. 杆件长度的制作误差不会引起杆件内力的变化
D. 如仅有一根杆件破坏，该结构尚能继续承受荷载

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简支于柱顶的静定钢筋混凝土屋架(非预应力)，如仅将下弦配筋增加一倍，问在同样节点荷载作用下，下弦内力有何变化(忽略配筋增加后自重增加的影响)

A. 减少一半
B. 不变
C. 增加一倍
D. 不确定

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Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer. Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.

A. They are not in style any more.
B. They have cost him far too much.
C. They no longer suit his eyesight.
D. They should be cleaned regularly.

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Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer. Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.

A. The man did not believe what the woman said.
B. The man accompanied the woman to the hospital.
C. The woman may be suffering from repetitive strain injury.
D. The woman may not have followed the doctor’s instructions.

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Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer. Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.

A. He spilled his drink onto the floor.
B. He has just finished wiping the floor.
C. He was caught in a shower on his way home.
D. He rushed out of the bath to answer the phone.

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以下对静定结构内力的论述，哪项正确

A. 温度的变化会引起杆件内力的变化 B. 支座的不均匀沉陷会引起杆件内力的变化 C. 杆件长度的制作误差不会引起杆件内力的变化 D. 如仅有一根杆件破坏，该结构尚能继续承受荷载

简支于柱顶的静定钢筋混凝土屋架(非预应力)，如仅将下弦配筋增加一倍，问在同样节点荷载作用下，下弦内力有何变化(忽略配筋增加后自重增加的影响)

A. 温度的变化会引起杆件内力的变化
B. 支座的不均匀沉陷会引起杆件内力的变化
C. 杆件长度的制作误差不会引起杆件内力的变化
D. 如仅有一根杆件破坏，该结构尚能继续承受荷载