A newly developed jumbo rocket, which is expected to carry the United States into its next phase of space exploration, will be able to deliver a heavier load of instruments into orbit than the space shuttle can, and at a lower cost.
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时光老人 2015-11-30 01:48:09
搞不懂and at a lower cost前面为什么要加逗号啊！没道理啊
Nora Flame 2014-05-23 16:50:24
deliver的主语应该是rocket而不是development。than的前后平衡应该一致，都应该是功能：rocket able to do = space shuttle can do
lok19600618 2014-05-14 11:45:46
and at a lower cost
考GMAT啊啊 2015-11-15 11:32:57
than....与后面的at a lower cost并列
荔馨 2015-10-13 10:34:16
easy down to D,E. Considering the meaning, we can get the correct answer D. A little more points I want to stress in answer D : "will be" is main verb in the clause, "to deliver ..." act as an infinitive modifier to modify the verb. "can" is the second verb in comparison. Before "at a lower cost", there is an elliptic verb "will be".
micyuc 2015-07-30 19:19:45
and (will be able to deliver) at a lower cost
sailsweek 2014-05-02 17:10:21
A newly developed jumbo rocket, which is expected to carry the United States into its next phase of space exploration, will be able to deliver a heavier load of instruments into orbit than the space shuttle can, and will be able to deliver a load of instruments into orbit at a lower cost than the space can
