—Is using a mobile phone harmful to people's health?
—Scientists ________ this problem,but no exact conclusion has been drawn yet.( ?。?/h1>
【考點(diǎn)】現(xiàn)在完成進(jìn)行時(shí).
【答案】A
【解答】
【點(diǎn)評】
聲明:本試題解析著作權(quán)屬菁優(yōu)網(wǎng)所有,未經(jīng)書面同意,不得復(fù)制發(fā)布。
發(fā)布:2024/8/6 8:0:9組卷:7引用:1難度:0.4
相似題
-
1.I won't tell the students the answer to the math problem until they ________ on it for more than an hour.( )
發(fā)布:2024/12/19 15:30:1組卷:67引用:2難度:0.7 -
2.He
發(fā)布:2024/12/20 7:30:1組卷:0引用:1難度:0.6 -
3.The little boy is dirty all over because he
發(fā)布:2024/12/17 16:30:1組卷:5引用:7難度:0.7
把好題分享給你的好友吧~~