88. The Emperor Augustus, it appears, commissioned an idealized sculpture portrait, the features of which are so unrealistic as to constitute what one scholar calls an “artificial face.”
(A) so unrealistic as to constitute
(B) so unrealistic they constituted
(C) so unrealistic that they have constituted
(D) unrealistic enough so that they constitute（A）
(E) unrealistic enough so as to constitute
136. Although schistosomiasis is not often fatal, it is so debilitating that it has become an economic drain on many developing countries.
(A) it is so debilitating that it has become an economic
(B) it is of such debilitation, it has become an economical
(C) so debilitating is it as to become an economic
(D) such is its debilitation, it becomes an economical（A）
(E) there is so much debilitation that it has become an economical
88题OG中对C的解释：the present perfect verb have constituted (in C) is NOT correct that suggests that the statue’s features once constituted an artificial face but no longer do so. C中的现在完成时表示该动作到现在为止已经完成了，不再延续，因而是错误的。
136题中对A的解释：是合乎习语的。为什么schistosomiasis 在A中用现在完成时表达它是一种经济实惠的排水物质，就可以用现在完成时，而不产生如88题中C的错误呢？
so that/so as to出了看逻辑主语一致和表语结构外还有其他区别吗? | 
