After the fire in his house, the old car is the only thing ___ he owns.
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The speaker spoke of some writers and some books ___ were popular then.
A. who
B. that
C. which
Who is the worker ___ took some pictures of the factory.
A. who
B. that
C. which
T形梁的腹板(梁肋)宽度与配筋形式有关：当采用焊接骨架配筋时，腹板宽度不应小于140mm，一般取160～220mm；当采用单根钢筋配筋时，腹板宽度较大，具体尺寸应根据布置钢筋的要求确定。
A. 对
B. 错
T形梁的上翼缘尺寸，应根据行车道板的受力和构造要求确定。
A. 对
B. 错
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