单项选择题
His mother's scolding pierced him to the quick（）
A．froze him completely B．shamed him enormously C．hurt him to the core D．stuck in his craw
单项选择题 This year's sterling depreciation, only a few aver, has no impact on the economy at large（）
单项选择题 To survive in the intense trade competition between countries, we must （）the qualifies and varieties of products we make to the world market demand.
