--- What did the teacher say to you? ---

题型:选择题

问题:

--- What did the teacher say to you?

--- I left my homework at home, so she asked me when ________ it.

A.I would bring

B.I will bring

C.was I going to bring

D.will I bring

考点:宾语从句
题型:选择题
已知平面向量
a
b
不共线,若存在非零实数x,y,使得
c
=
a
+2x
b
d
=-y
a
+2(2-x2
b

(1)当
c
=
d
时,求x,y的值;
(2)若
a
=(cos
π
6
,sin(-
π
6
)
),
b
=(sin
π
6
,cos
π
6
),且
c
d
,试求函数y=f(x)的表达式.
题型:选择题

RD3车轴轴颈的直径尺寸公差为()+0.068+0.043时,该公差带的基本偏差是0.043mm。

题型:选择题

红斑肢痛病好发于()

A.双手

B.两足

C.双上肢

D.双侧小腿

E.双侧大腿

题型:选择题

小接地电流电网中,母线单相接地,线路末段接地,TV开口三角形侧电压总在100伏左右。

题型:选择题

活动期间佝偻病最早出现的骨骼体征是()

A.方颅

B.颅骨软化

C.前囟迟闭

D.肋骨串珠

E.鸡胸或漏斗胸

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