教甄◆英文科題庫下載題庫

        After a 45-year __31__ , in vitro fertilization (IVF) procedures have made a comeback in Alabama. The state had ceased offering IVF treatments following a ruling by the Alabama Supreme Court in February, which __32__ embryos created through IVF the same rights as children. However, a recent enactment of a state law __33__ clinics from legal repercussions has paved the way for the resumption of IVF services. Yet, clinicians and scientists in the United States, particularly those working with human embryos, remain __34__ , anticipating a surge in legal and constitutional challenges.

       Physicians are especially worried that officials might __35__ the number of embryos that can be created in each treatment cycle, which often entails the fertilization of several eggs. Lawmakers could also ban the freezing of __36__ embryos, which doctors say would result in less efficient and more expensive treatments.

       Hank Greely, director of the Center for Law and the Biosciences at Stanford University in California, suggests that IVF’s widespread popularity in the United States may offer some __37__ for the practice. But research using human embryos—which is already restricted or even banned in some states— might be an easier target for anti-abortion __38__ , some of whom contend that life begins at conception and that __39__ an embryo is akin to killing a child. Greely underscores the anxiety __40__ the research community, stressing that there are valid reasons for concern.

(AB) shielding (AC) apprehensive (AD) accorded (AE) pervading (BC) safeguard (BD) cap (BE) hiatus (CD) advocates (CE) discarding (DE) backup