【简答题】Literacy Volunteer
Last summer I went through a training program and became a literacy volunteer (扫盲志愿者). The training I received, though excellent, did not tell me how it was to work with a real stu...
【多选题】改善梁的强度的有效措施包括( ).
B.
对于简支梁,可根据荷载情况和截面的形状尺寸将两个支座适当地平移
C.
若矩形截面梁的材料是脆性材料,则可将其改为等面积的 T 形截面梁,并将梁的中性轴偏于受拉侧放置
【单选题】Literacy Volunteer
Last summer I went through a training program and became a literacy volunteer (扫盲志愿者). The training I received, though excellent, did not tell me how it was to work with a real stu...
【单选题】下列关于蛋白质的说法,错误的是()
A.
蛋白质主要由碳、氢、氧、氮、硫等化学元素组成
【简答题】I believe listening is powerful medicine. It was Sunday. I had the last patient( 病人 ) to see and I got into her room. She was an old woman, sitting on the bed and trying to 1 her socks. I said, "How a...
【多选题】关于蛋白质下列说法正确的有
A.
蛋白质主要由碳、氢、氧、氮四种元素构成,有些含有硫、磷等元素。
B.
完全蛋白质是指氨基酸种类齐全、比例合适;如动物蛋白、大豆蛋白。
C.
半完全蛋白质是指氨基酸种类齐全、比例不当;如麦胶蛋白
D.
不半完全蛋白质是指氨基酸种类不齐全、比例不当;如玉米蛋白
【单选题】蛋白质主要由碳、氢、氧、()四种元素构成,另外还有少量的硫、磷、铁、碘等元素。
【多选题】改善梁的强度的有效措施包括 .
A.
若梁中只有正弯矩,则可采取措施 使正弯矩变为负弯矩
C.
对于简支梁,可根据荷载情况和截面的形状尺寸将两个支座适当地平移
D.
若矩形截面梁的材料是脆性材料,则可将其改为等面积的 T 形截面梁,并将梁的中性轴偏于受拉侧放置
【简答题】Literacy Volunteer
Last summer I went through a training program and became a literacy volunteer (扫盲志愿者). The training I received, though excellent, did not tell me how it was to work with a real stu...