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【多选题】
固定成本的特征包括A.
成本总额不变
B.
成本总额正比例变动
C.
单位成本不变
D.
单位成本反比例变动
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反馈参考答案：
举一反三
【单选题】The body tissue that consists largely of material located outside of cells is
A.
epithelial tissue
B.
connective tissue
C.
muscle tissue
D.
nervous tissue
【简答题】This ___2__ pacemakers to insulin pumps to the materials that engineers are using to try and build new tissue. So when I place that material, or scaffold, in the body, the immune system creates a smal...
【单选题】下列古诗词中不是描写春天情景的是（ ）。
A.
西塞山前白鹭飞，桃花流水鳜鱼肥
B.
碧玉妆成一树高，万条垂下绿丝绦
C.
淑气催黄鸟，晴光转绿苹
D.
竹摇清影罩幽窗，两两时禽噪夕阳
【单选题】Excitability is the body or tissue to stimulate
A.
Stress characteristics
B.
Reaction characteristics
C.
Produce adaptive characteristics
D.
Characteristics that cause reflection
【单选题】图示结构E=常数，在给定荷载作用下若使A支座反力为零，则应使______。
A.
I 2 =I 3
B.
I 2 =4I 3
C.
I 2 =2I 3
D.
I 3 =4I 2
【单选题】Which of the following is usually not included in the exudates that escape from the vascular system to interstitial tissue or body cavities?
A.
leukocytes
B.
fluids
C.
plasma proteins
D.
hemoglobin
【判断题】The suce temperature of animal body is lower than that of deep tissue and internal organs.
A.
正确
B.
错误
【单选题】a piece of body tissue that you contract and relax in order to move a particular part of the body 肌肉;肌
A.
music
B.
museum
C.
muscle
D.
mutual
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