Abstract: A word line voltage generator circuit, a semiconductor device, and an electronic device are provided. The word line voltage generator circuit includes a switch circuit connected to a high-level signal and a low-level signal and configured to output the high-level signal or the low-level signal as a word line voltage signal based on an input signal, and a drive signal control circuit configured to provide a drive signal connected to the switch circuit in response to the input signal. A voltage rising speed of the word line voltage signal is controlled by the drive signal.

Abstract: The current invention discloses an attenuated Salmonella typhimurium, a genetically engineered bacterium and applications thereof in preparing drugs for the treatment of prostate cancer. The attenuated Salmonella typhimurium has tumor targeting and significant inhibitory effects on prostate cancer cells. A genetically engineered bacterium bearing a L-methioninase gene plasmid also has tumor targeting ability. The attenuated Salmonella typhimurium with the plasmid can constitutively express L-methioninase in the tumor tissues, consume a significant amount of methionine and other nutrients, which in turn causes lack of nutrition and slow growth of tumor cells. Therefore, it can be used as drugs for treating prostate cancer.