23． The underlined word "them" in the last paragraph refers to _________ ．

A． oxygen masks

B． doctors

C． oxygen

D． passengers

[单选题]23． The underlined word "gorgeous" means " _______ '．A． beautifulB． differentC． importantD． necessary

[单选题]23． What does the underlined word "beyond" mean in Chinese in this passage?A．，超出B．不如C．相等D．在后面

[单选题]What does the underlined word \"them\" in PARAGRAPH THREE refer to?A.Birds.

[单选题]23． The word "it" means_________ in the sentence "But not too much of it"．A．ideaB．sleepC．workD．study

[单选题]The underlined word ///"hacker///" (Para. 1) most probably means ///"The underlined word ///"hacker///" (Para. 1) most probably means ///"________///".[A] highly recognizable names behind many of the computer technol

[单选题]The underlined word ///"thwart///" (Para. 1) most probably means ///"The underlined word ///"thwart///" (Para. 1) most probably means ///"________///".[A] destroy[B] forbid[C] cure[D] prevent

[单选题]What does the underlined word "they" in Paragraph 6 refer to?A． The participants in the study.B． The researchers of the study.C． The errors made during the study.D． The data collected from the study.

[单选题]The underlined word "hibernation" in paragraph 2 means ______.A． a sleep to avoid eatingB． a temperature in a cold weatherC． a sleep in the cold seasonD． an animal to practice sleep in winter

[单选题]The underlined word "deter" in Paragraph 3 most probably means .A． discourage B. remove C. benefit D. free

[单选题]The word "spray" (underlined in the third paragraph) meansA．oil mistB．hot gasC．injectionD．fuel oil