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【单选题】
可见光固化复合树脂最常用的引发体系是A.
樟脑醌敏感波长440~500nm
B.
过氧化苯甲酰敏感波长300~400nm
C.
三丁基硼敏感波长400~500nm
D.
过氧化苯甲酰敏感波长400~500nm
E.
樟脑醌敏感波长300~400nm
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【单选题】I'm (old enough) (not to) let my trouble (to interfere) (with) my work.
A.
old enough
B.
not to
C.
to interfere
D.
with