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【简答题】
爱一个人,什么时候表白合适呢?
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Speaker A: What's your sister? Speaker B:
A.
She's Mary.
B.
She is a student.
C.
She's sixteen.
【单选题】—What's your sister doing? —______. [ ]
A.
I can't see her
B.
She's flying a kite
C.
Yes, she's reading
D.
She likes running
【单选题】— What's your sister doing? — She is _____________ in the pool. [ ]
A.
swiming
B.
swim
C.
swimming
【单选题】---what's your sister doing? ----_________. [ ]
A.
She sings
B.
She often watches TV
C.
She's singing
D.
I am singing
【多选题】以下说法中错误的是 。
A.
梁内弯矩为零的横截面，其挠度也为零
B.
梁在最大挠度处的横截面转角也一定为零
C.
绘制挠曲线大致形状时，既要根据梁的弯矩图，也要考虑梁的支撑条件
D.
温度应力和装配应力都将使超静定梁的承载能力降低
【单选题】下列有关抵抗弯矩图的说法中,正确的是( )。
A.
是根据实际配置的纵向受力钢筋所确定的梁各正截面所能抵抗的弯矩而绘制的图形
B.
是作用效应图
C.
是根据实际配置的横向受力钢筋所确定的梁各斜截面所能抵抗的剪力而绘制的图形
D.
是荷载作用下的内力图
【单选题】单项选择。 — What's your sister doing? — She is singing a song _______ my mother. [ ]
A.
at
B.
to
C.
on
D.
in
【单选题】--What's your sister like? --_______
A.
She is wearing a blue dress
B.
She is kind
C.
I don’t like her
D.
She likes light music
【单选题】在一点电荷产生的电场中，以点电荷处为球心作一球形封闭曲面，曲面内有一块对球心不对称的电介质，则下列说法正确的是：
A.
高斯定理成立，并可用其求出封闭面上各点的电场强度
B.
高斯定理成立，但不能用其求出封闭面上各点的电场强度
C.
高斯定理不成立
D.
即使电介质对称分布，高斯定理也不成立
相关题目：
【单选题】Speaker A: What's your sister? Speaker B:
A.
She's Mary.
B.
She is a student.
C.
She's sixteen.