皮皮学，免费搜题
登录
搜题
【简答题】
Task 1. Listen to a short conversation and decide whether the following statements are true or false.
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【单选题】You _____ if you had spoken the truth out. But you were as quiet as a mouse. [     ]
A.
mustn't have been blamed
B.
shouldn't be blamed
C.
wouldn't have been blamed
D.
couldn't be blamed
查看完整题目与答案
【单选题】If you had spoken clearly, you ______.
A.
would be understood
B.
could be understood
C.
would have been understood
D.
would have understood
查看完整题目与答案
【判断题】在气动弹性设计准则中，设计飞行设计速度vd要大于等于最大飞行速度vmax，在设计准则中，vd等于vmax的1.5倍。
A.
正确
B.
错误
查看完整题目与答案
【简答题】求下列函数的微分 (1) (2) (3)设y=y(x)满足方程xy-e x +e y =0，求dy
查看完整题目与答案
【单选题】If you had spoken clearly, you _______.
A.
would have been understood
B.
be understood
C.
can understand
D.
can be understood
查看完整题目与答案
【单选题】If you had spoken more clearly, you______.
A.
would understand
B.
would be understood
C.
would have been understood
D.
would have understood
查看完整题目与答案
【单选题】298K 时,反应 Zn+Sn 4+ = Sn 2+ +Zn 2+ (1.0 mol·dm -3 ) 组装成原电池,测得电动势为 0 ,则 c(Sn 2+ ) 应为( ) mol·dm -3 。(已知 j Θ (Zn 2+ /Zn) = -0.76V , j Θ (Sn 4+ /Sn 2+ ) = 0.15V )
A.
1.0
B.
4.25×10 -16
C.
1.81×10 -31
D.
0.86
查看完整题目与答案
【单选题】298K时，反应Zn+Sn4+= Sn2+(1.0mol·dm-3)+Zn2+(1.0mol·dm-3)组装成原电池，测得电动势为0，则c(Sn4+)应为（）mol·dm-3（已知jϴ(Zn2+/Zn) = -0.76V，jϴ(Sn4+/Sn2+) = 0.15V）
A.
1.0
B.
4.25×10 -16
C.
1.81×10 -31
D.
0.86
查看完整题目与答案
【单选题】298K 时,反应 Zn+Sn 4+ (1.0 mol·dm -3 ) =Sn 2+ +Zn 2+ (1.0 mol·dm -3 ) 组装成原电池,测得电动势为 0 ,则 c(Sn 2+ ) 应为( ) mol·dm -3 。(已知 ψ Θ (Zn 2+ /Zn) = -0.76V, ψ Θ (Sn 4+ /Sn 2+ ) = 0.15V)
A.
1.0
B.
4.25×10 -16
C.
1.81×10 -31
D.
0.86
查看完整题目与答案
【单选题】If you had spoken clearly, you would ______ .
A.
understand it                        
B.
have understood
C.
be understood                        
D.
have been understood
查看完整题目与答案
相关题目：
【单选题】You _____ if you had spoken the truth out. But you were as quiet as a mouse. [     ]
A.
mustn't have been blamed
B.
shouldn't be blamed
C.
wouldn't have been blamed
D.
couldn't be blamed
查看完整题目与答案
【单选题】If you had spoken clearly, you ______.
A.
would be understood
B.
could be understood
C.
would have been understood
D.
would have understood
查看完整题目与答案
【判断题】在气动弹性设计准则中，设计飞行设计速度vd要大于等于最大飞行速度vmax，在设计准则中，vd等于vmax的1.5倍。
A.
正确
B.
错误
查看完整题目与答案
【简答题】求下列函数的微分 (1) (2) (3)设y=y(x)满足方程xy-e x +e y =0，求dy
查看完整题目与答案
【单选题】If you had spoken clearly, you _______.
A.
would have been understood
B.
be understood
C.
can understand
D.
can be understood
查看完整题目与答案
【单选题】If you had spoken more clearly, you______.
A.
would understand
B.
would be understood
C.
would have been understood
D.
would have understood
查看完整题目与答案
【单选题】298K 时,反应 Zn+Sn 4+ = Sn 2+ +Zn 2+ (1.0 mol·dm -3 ) 组装成原电池,测得电动势为 0 ,则 c(Sn 2+ ) 应为( ) mol·dm -3 。(已知 j Θ (Zn 2+ /Zn) = -0.76V , j Θ (Sn 4+ /Sn 2+ ) = 0.15V )
A.
1.0
B.
4.25×10 -16
C.
1.81×10 -31
D.
0.86
查看完整题目与答案
【单选题】298K时，反应Zn+Sn4+= Sn2+(1.0mol·dm-3)+Zn2+(1.0mol·dm-3)组装成原电池，测得电动势为0，则c(Sn4+)应为（）mol·dm-3（已知jϴ(Zn2+/Zn) = -0.76V，jϴ(Sn4+/Sn2+) = 0.15V）
A.
1.0
B.
4.25×10 -16
C.
1.81×10 -31
D.
0.86
查看完整题目与答案
【单选题】298K 时,反应 Zn+Sn 4+ (1.0 mol·dm -3 ) =Sn 2+ +Zn 2+ (1.0 mol·dm -3 ) 组装成原电池,测得电动势为 0 ,则 c(Sn 2+ ) 应为( ) mol·dm -3 。(已知 ψ Θ (Zn 2+ /Zn) = -0.76V, ψ Θ (Sn 4+ /Sn 2+ ) = 0.15V)
A.
1.0
B.
4.25×10 -16
C.
1.81×10 -31
D.
0.86
查看完整题目与答案
【单选题】If you had spoken clearly, you would ______ .
A.
understand it                        
B.
have understood
C.
be understood                        
D.
have been understood
查看完整题目与答案