The boy is ________ see the teacher because he ________ a mistake.
A：afraid of; has
B：afraid to; has made
C：afraid to; make
D：afraid of; made
下列与多倍体形成有关的是（ ）
诚信的核心是善，因此说些“善意的谎言”并不违背诚实的道德。（ ）
