()是从太阳大气最外层的日冕向空间持续抛出的等离子流，其主要成分为氢粒子和氦粒子。
查看答案
Currently, many of the EUs member states______.
A. are praised for their work
B. shirked their responsibilities
C. are mired in recession
D. highlighted sales of farm products
当怀疑室内发生燃气泄漏时，应该用明火进行查漏。()
在燃气设施保护范围内，不准进行爆破、取土等作业。()
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