[单选题]下面关于杉科的特征描述中，正确的是( )。

正确答案 ：C

珠鳞与苞鳞为半合生

[多选题]Directions: Beneath each of the following sentences there are four choices markedA,B, C and D. Choose the one answer that best completes the sentence.

正确答案 ：CF

covering B． covered C． cover D． to cover

calling

[单选题].What can we infer from the last sentence of the text?

正确答案 ：C

The harmony between man and nature is important.

[单选题]杨柳科植物的花序是柔荑花序。( )

正确答案 ：A

正确

[单选题]What is special about the battery?

正确答案 ：A

It is built in an iPhone.

[单选题]

正确答案 ：D

abroad

[单选题]After the teacher’s words，all the students in the class _________.

正确答案 ：C

began to think about their designs

解析：【解析】细节理解题。由第三段可知。

[单选题]关于热力学定律，下列说法正确的是

正确答案 ：B

物体从单一热源吸收的热量可全部用于做功

[单选题]

正确答案 ：A

point

[单选题]47_____Athey

正确答案 ：B

this

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