[单选题]蓝藻植物没有具鞭毛的游动细胞。( )

正确答案 ：A

正确

[单选题]The text is written mainly for those_____________.

正确答案 ：D

who eat before sleep

[单选题]What is the main idea of the text?

正确答案 ：A

Delivering bad news properly is important in communication.

[单选题]What is most likely to be discussed in the paragreh that follows?

正确答案 ：A

Steps to improving water use managet.

[单选题]Which of the following is true?

正确答案 ：C

The underground water in Saudi Arabia might run out in 50 years.

查看原题