Why does it take long for people to change their food?

A． Because labs are not easily accessible to researchers.

B． Because some people are reluctant to accept the new diet.

C． Because food consumption is a culture of conservation.

D． Because some scientists are against the growing lab meat.

[主观题]What does Jackie Chan do?____________

[主观题]D．oes Jackie Chan like listening to music?____________

[问答题]()How long will it take us to get there?

[主观题]H．ow long will it take for you to make a contribution?你需要多长时间才能做出明显的贡献？

[单选题]--Why does the Lake smell terrible?--Because large quantities of water .A． have polluted B. is being polluted C. has been polluted D. have been polluted

[单选题]Why does the author write the text?A． To stress the importance of oxen in farming.B． To introduce the Chinese folk culture.C． To describe how to celebrate the Year of Ox.D． To explain how to develop agriculture with oxen.

[单选题]Why does the writer of the letter that Electro-Robo is violent?A． It is control to radio water.B． It is expensive to buy.C． It is 80 centimeterD． It bears arms.

[单选题]Why doesn’t the woman take the green T-shirt?（ ）A．It's too small．B．It’s too dark．C．It’s too expensive

[单选题]Why does author say that they were lucky in the third paragraph?A． Because her situation was not serious.B． Because many other places were flooded.C． Because she had been to Northern India.D． Because some others suffered even more.

[单选题]Why does the woman invite the man to tea？A．She needs some friends to talk with.B．She will give the man some useful information.C．She needs some help from the man.