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【单选题】
下列关于潮汐河流一维水质预测模式的表述错误的是（ ）。A.
在潮汐河流中，最常用的是一维的水质方程
B.
潮平均的浓度值也是描述水质状况的一个重要参数
C.
一维水质预测模式采用有限元法、差分法等数值求解方法
D.
在一维潮平均的水质方程中t表示潮汐周期时间
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【单选题】I didn’t sleep well last night, but it was not my own ________, because the plane kept making noise.
A.
mistake
B.
fault
C.
trouble
D.
problem
【单选题】I didn’t sleep well last night because of the noise. It was not until midnight ___ the noise in the street stopped.
A.
that
B.
when
C.
since
D.
at which
【单选题】I didn’t sleep well ________ the noise from that factory nearby.
A.
because
B.
because of
C.
Unless
【简答题】anyhow behavior defend emergency fault tolerate sink scenes ager upset 15 I didn’t sleep well that night, but it was my own ______ .
【单选题】—You look tired. Why? — I didn’t sleep well. The math exam is coming. —____ . I ’ ll help you.
A.
Don’t worry
B.
That’s too bad
C.
Yes
D.
Thanks
【单选题】I didn’t sleep well last night as all the heating __________.
A.
went off
B.
went on
C.
went up
D.
went down
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