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【判断题】
拉弯组合变形,其横截面上的应力只有拉应力,而没有压应力。A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
举一反三
【简答题】如图5.4.9所示电路中，u C (0 - )=2V，t＜0时，i S =0，t＞0时，i S =10A，利用三要素法求i 1 (t)、i C (t)和u C (t)。
【单选题】Do you know _____? [ ]
A.
What kind of movies dose he like
B.
What kind of movies he likes
C.
What kind of movies dose he likes.
D.
What kind of movies he like
【单选题】设a，b，c，d，m和n均为int型变量，且a＝5，b＝6，c＝7，d＝m＝2，n＝ 2，则逻辑表达式(m＝a＞b)&&(n＝c＞d)运算后，n的值为 ( )
A.
0
B.
1
C.
2
D.
3
【单选题】—______ do you like? —Thrillers. [ ]
A.
What kind movie
B.
What kind of movies
C.
What movie
D.
Kind movie
【简答题】[计算题] 3.9-1 应用网孔电流法求图 3.5.9 所示电路中的 u 和受控源吸收的功率。 取如图所示的网孔电流,则 i m1 =______A , i m2 =_______A , i m3 =_______A , U =_______V , P VCVS =_______W 。 图 3.5.9 题3.9电路图
【简答题】A．What salary the borrower makes. B．What kind of job the borrower has. C．What kind of house the borrower lives in. D．How much money the borrower owns.
【单选题】He didn’t know __________
A.
what kind of snake it is
B.
what kind of snake is it
C.
what kind of snake it was
D.
what kind of snake was it
【单选题】—_____ do you like best? —Baseball. [ ]
A.
What kind of food
B.
What kind of sports
C.
What color
D.
What kind of movies
【单选题】在题 9 图所示放大电路中 , 已知 I 1 ≫ I BQ ,U BQ ≫ U BEQ , 则当温度升高时
A.
I CQ 基本不变
B.
I CQ 减小
C.
I CQ 增大
D.
U CEQ 减小
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