aida64显卡温度:Many difficulties have ___ as a result of the change over to a new type of fuel.

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A. risen
B. raised
C. arisen
D. arrived
请指教！

查过字典后，答案是C
arise
（困难等的）出现，发生，呈现

eg, A new dificulty has arisen.

B

raise
vt.
升起, 唤起, 提高, 使出现, 解除, 饲养, 筹集, 使复活

应该是risen，
raised前不是需有been吗？

C

arise
vi.
专指困难、问题的出现、发生

Many difficulties have ___ as a result of the change over to a new type of fuel. Many difficulties have ___ as a result of the change over to a new type of fuel. Many difficulties have ___ as a result of the change over to a new type of fuel. Two reasons bring the difficulties: HA是什么意思？ 什么是HA? HA是什么意思? many .many of用法 When ___ with difficulties,she ran away. Difficulties living in a new country