题目内容
Thousands of people who should get welfare payments never even bother to ___________ them.
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His recent works _____________ heavily on language teaching theories of the 1980s.
As one of China's most vibrant urban economies, Quanzhou has long viewed private capital as a crucial _______________ of its financial well-being.
The beneficial properties of black phosphorus(磷) have been known for some time, but until now there was no reliable way to _____________ the bulk crystals into a stable and printable ink.
China is willing to ______________ high-level exchanges with Nepal and strengthen cooperation under the China-proposed Belt and Road Initiative.
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