单选题 His constant attempts to ______ his colleagues' achievement eventually caused his dismissal.

【正确答案】 C

【答案解析】(restrain抵制，遏制)。句意为：他企图长期遏制同事们的成就，这最终导致了他被解雇的命运。A．withdraw使撤退，B．diminish减少；D．confine限制(指把某物限制在一定范围内)。