{01}The research also raises the question ________ children from low-income, less educated families need earlier aid.
A.what
B.that
C.when
D.whether
解析: 试题分析:句意:这项研究也引起了这样一个问题,那就是处于低收入,少教育的家庭的孩子是否需要早期的援助。这里含有一个同位语从句,且引导词在从句中不作任何成分,但是有实际意义,表示“是否”,故用whether,选D。 本题选D。 {02}——where did President Xi Jinping have steamed dumplings? _____It was at the Qing Feng Steamed Dumpling Shop _____ he lined up with other customers.
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