如图所示的电路中，P为滑动变阻器的滑片。保持理想变压器的输入电压U1不变，闭合电建S，下列说法正确的是
I didn't accept his help I wanted to try it myself．（ ）
because
though
until
unless
Volunteers from Lantian Saving Team have saved many travelers in the mountains．
．（ ）
How great a man
How great men
What a great man
What great men
My mother a good example for me since I was young．（ ）
was
has been
will be
is
Football to our school subjects last year．（ ）
is added
adds
was added
added
you speak， your English will be．（ ）
The less； the more
The more； the better
The less； the better
The more； the less
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