【題目】A scientist’s attempt to produce the world’s first gene-edited babies _____ are immune to HIV has sparked controversy in academia and the public.

A. as B. who

C. whom D. whose

【答案】B

【解析】

考查定語從句。句意為：一位科學(xué)家試圖培育出世界上首個對HIV有免疫力的基因編輯嬰兒，這在學(xué)術(shù)界和公眾中引發(fā)了爭議。定語從句的先行詞為babies，且從句缺少主語，故用關(guān)系代詞who引導(dǎo)從句。故選B。

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：

【題目】The old building is in a good state of _______ except for the wooden floors.

A. presentation B. separation

C. preservation D. reception

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Who is Rose probably?

A. The man’s student.

B. The speakers’ daughter.

C. The woman’s teacher.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Humans must first of all eat, drink, have houses and clothing, _____ they can pursue politics, science, art and religion.

A. if B. before

C. whether D. how

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】__ that's important is that you are doing your best and moving in the right direction.

A. One B. All C. Everything D. Anything

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Guangdong province rolled out new guidelines, _____ offensive nicknames and online violence as school bullying.

A. defining B. defined

C. to define D. having defined

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】___ moved us most was his honesty.

A. That B. What

C. Which D. Who

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Maggie was born with her hair curly, _____ her mother considered to be a great piece of good luck.

A. which B. what

C. that D. when

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】How long does it ______us to travel from New York to Beijing by air.

A. cost B. take

C. takes D. spend

查看答案和解析>>

同步練習(xí)冊答案