The twin brothers are only ______ in appearance.

[问答题]Bob and Peter found out that they were twin brothers.

[单选题]On a twin-screw，twin-rudder vessel，the most effective way to turn in your own water，with no way on，is to put（）.A . one engine ahead and one engine astern，with full rudderB . one engine ahead and one engine astern，with rudders amidshipsC . both engine

[填空题] 双胎输血综合征(twin to twin transfusion syndrome，TTTS)：发生在______羊膜囊______绒毛膜______卵双胎，两胎儿体重相差≥______％，血红蛋白相差＞______g／L，提示TTTS。

[名词解释] 发病期（symptom appearance）

[试题]AlthoughIliketheappearanceofthehouse,whatreallymademedecidetobuyitwasthebeautiful______________throughthewindow.A．)visionB)lookC．)pictureD)view

[主观题]D．oes Nancy have any brothers?_____________

[单选题]The two brothers seem to have no interest in ________.A.mutual B.ordinary C

[单选题]The two brothers look very muchA.alikeB.likeC.likelyD.likewise

[单选题]The two brothers seem to have no interest in ________ .A.mutual B.ordinary

[名词解释] 双胎妊娠(twin pregnancy)