5. GWD26-Q5 The particular design of muscles and bones in the neck and limbs of the turtle allow that it can draw in its exposed parts such that an attacker can find nothing but hard shell to bite. A. allow that it can draw in its exposed parts such that B. allow it to draw in its exposed parts, and so C. allows for it to draw in its exposed parts and that D. allows that it can draw in its exposed parts, and so E. allows it to draw in its exposed parts, so that 这道题答案是D.我本来选的是E,后来觉得D也有道理. E中如果把句子简化好象可以这样理解 the design allow the design to draw...这样好象就不对了,那D 就稍微好点,只是我实在不明白这个and so是什么用法,俩连词在一起算怎么回事,还有allow that还是允许的意思吗? | 
