It was proved that the problem __ partly in the air pollution. A. lies   B. lied   C.

It was proved that the problem __ partly in the air pollution.

A. lies   B. lied   C. lay    D. laid

答案

C

相关题目

 Lily called me _________ Friday morning and told me she was having a birthday
 Lily called me _________ Friday morning and told me she was having a birthday party _________ me tomorrow.                                             
果蝇是进行遗传实验的良好材料,现有三管果蝇,每管中均
果蝇是进行遗传实验的良好材料,现有三管果蝇,每管中均有红眼和白眼(相关基因为B和b),且雌雄分别为不同眼色。各管内雌雄果蝇交配后的子代情况
下面各句中,没有语病表意清楚的是(    )(2分)   A.
下面各句中,没有语病表意清楚的是(    )(2分)   A.是否能学以致用,是一个人在事业上取得成功的前提。   B.通过“学会感恩”主题班会,
已知⊙C:x2+y2=1,点A(-2,0)和点B(2,a),从点A观察点B,要使视线不被
已知⊙C:x2+y2=1,点A(-2,0)和点B(2,a),从点A观察点B,要使视线不被⊙C挡住,则实数a的取值范围是A.(-∞,-1)∪(1,+∞)                             B.(-
I still feel________about the error in the accounts;I ought to have noticed it
I still feel________about the error in the accounts;I ought to have noticed it,and pointed it out. A.shameless                        B.regrettable  C.guilty     
下列各选项中,后者不属于前者的是(      )A.酸、硫酸
下列各选项中,后者不属于前者的是(      )A.酸、硫酸   B.碳酸盐、Na2CO3   C.化合物、氧化物    D.钾盐、KOH 
―Where would you like to go?     ―I don't mind _____ I go; I will go ____
―Where would you like to go?     ―I don't mind _____ I go; I will go _____ you want to go.   A. where; the place              B. where; wherever C. the place; wherever     
4.碘元素有多种价态,可以形成多种含氧阴离子IxO。由2个IO
4.碘元素有多种价态,可以形成多种含氧阴离子IxO。由2个IO 正八面体共用一个面形成的IxO的化学式为 A.I2O                  B.I2O           

最新题目