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【单选题】
在钙磷代谢的调节中甲状旁腺激素的作用是A.
升高血钙、降低血磷
B.
升高血磷、降低血钙
C.
增加肾小钙、磷的重吸收
D.
减少肾小钙、磷的重吸收
E.
增加血中钙、磷浓度
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】整流滤波电路如图:
【简答题】'll never forget the time ____ I spent on campus.
【单选题】That is the day_
'll never forget. A. which B. on which C. in which D. when
A.
a
B.
b
C.
c
D.
d
【简答题】'll never forget the day ____ we first met in the park.
【简答题】单相桥式整流滤波电路如图18-28所示，电容C=1000μF，负载电阻R L =100Ω， ，U 2 =10V，计算输出电压U o 和流过负载的电流I o
【单选题】It's time to say goodbye to my school. I 'll never forget the days ( ) we spent together.
A.
that
B.
what
C.
who
D.
when
【简答题】阅读理解。 HE cleans your house. He repairs your broken toys. He helps you with your homework. Even if you make a lot of trouble at school, he 'll never stop loving you. WHO? It's your father, _______ And...
【多选题】设计淘宝店铺店招的目的是为了宣传店铺产品的卖点、售后服务等信息,下面符合其尺寸要求的有( )
A.
120*750px
B.
130*950px
C.
120*950px
D.
100*950px
相关题目：
【单选题】That is the day_
'll never forget. A. which B. on which C. in which D. when
A.
a
B.
b
C.
c
D.
d