【判断题】【消耗次数：1】
放大镜、天平、水箱等材料应投放在操作区。
①
正确
②
错误
参考答案：
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相关题目
【多选题】
科学活动中的材料应如何投放（ ）。
①
材料的投放要有明确的主题并且紧扣具体活动目标。
②
投放材料难度形成一定的层次。
③
投放材料的开放性。
④
同种材料与多种材料的灵活运用。
随机题目
【单选题】
We solved the problem
by using a computer rather than ____ it all by hand.
①
to do
②
do
③
does
④
having done
【单选题】
____ we could not live at all.
①
If it was not for the sun
②
If it shouldn’t be for the sun
③
Were it not for the sun
④
Had it not been for the sun
【单选题】
Certainly there is no____ evidence that living together increases the chance of sickness.
①
secret
②
scientific
③
serious
④
sensitive
【单选题】
I should like to rent a house, modern, comfortable and ____ in a quiet neighborhood.
①
all in all
②
after all
③
above all
④
over all
【单选题】
The population of Chinais larger than ____ofCanada.?
①
that ?
②
those ?
③
this ?
④
it ?
【单选题】
He told me that he ____ by his uncle in the countryside.
①
will be brought up
②
has been brought up
③
had brought up
④
was brought up
【单选题】
A lot of students ____ the campus since July 1.
①
have left
②
leave
③
left
④
is leaving
【单选题】
—I’m taking my driving test tomorrow. —____.
①
Cheers!
②
Congratulations!
③
Come on!
④
Good luck!
【单选题】
He regretted ____ the decision so hastily.?
①
make ?
②
making ?
③
to make ?
④
have made?