具有三棱形茎的是( )。Section ADirections: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the co
豆目三个科的区分主要依据( )。下列各句中,没有语病的一句是What can we infer from the text?We can infer from the passage that in England ______.Smell the flowers before you go to sleep, and you may just
雌蕊由花丝、柱头和子房三部分组成。( )Which of the following is the result of the volcanic eruption?苔藓植物一般没有维管组织,输导能力很弱。( )------- What is the price of petrol these days-------Oh, it
乌拉草属禾本科,是原核生物。( )——Guess what ,we’ve got our visas for a short —term visit to the UK this summer. ——How mice! you a different culture then.下列对本文有关内容的理解,正确的一项是今年3月,正
