下列能够正确表示蟾蜍发育过程的是( )
A:受精卵→蝌蚪→幼体蟾蜍→成体蟾蜍
B:受精卵→幼体蟾蜍→蝌蚪→成体蟾蜍
C:卵细胞→幼体蟾蜍→蝌蚪→成体蟾蜍
D:卵细胞→蝌蚪→幼体蟾蜍→成体蟾蜍
材料二:基督教中耶稣教人们忍受苦难,死后可以升入“天堂”。
请回答:
蚯蚓能生活在黑暗潮湿的环境中,同时它又可以疏松土壤,分解有机物增加土壤肥力,这说明( )
⑴I'm hungry.____ A. She's running.
⑵What are you doing?____ B. He's making noodles.
⑶What are they doing?____ C. I'm hungry, too.
⑷What is she doing?____ D. They are rowing a boat.
⑸What is Sam doing?____ E. I'm reading a book.